M100 Band3 ACA 4.2.2: Difference between revisions

Revision as of 04:59, 7 June 2013

This guide requires CASA 4.1.0 and assumes that you have downloaded M100_Band3_7m_CalibratedData.tgz from M100Band3#Obtaining_the_Data

Details of the ALMA observations are provided at M100Band3

This portion of the guide covers calibration of the raw visibility data. To skip to the imaging portion of the guide, see: M100Band3 Imaging 4.1.

Overview

This part of the M100 Band 3 7m CASA guide will step you through the calibration of the visibility data. We will begin by flagging (marking as bad) data known to be useless before any inspection, for example data where one telescope blocks the line of sight of another. Then we will apply telescope-generated calibration tables to partially correct for atmospheric effects. After inspecting the data, we will flag some additional data that exhibit pathologies. Then we will use observations of the calibrators Titan and 3c279 to derive the phase and amplitude response of individual antennas as a function of time and frequency ("phase", "amplitude", and "bandpass" calibrations). We will apply these to the data and then extract the calibrated source data into a file appropriate for imaging.

The general procedure in this guide follows the other ALMA CASA guides: NGC3256Band3 and TWHydraBand7.

Unpack the Data

Once you have downloaded the M100_Band3_7m_CalibratedData.tgz, unpack the file in a terminal outside CASA using

tar -xvzf M100_Band3_7m_CalibratedData.tgz

then change directory to the new directory

cd M100_Band3_7m_CalibratedData

You may wish to type

ls

to look at the files present. You should see a set of files with extension ".ms". These are CASA measurement set (MS) files. The data have already been converted to MS format from the native ALMA format using the CASA task importasdm. In addition to the data, we provide you with calibration tables containing system temperature (Tsys), water vapor radiometer (WVR), and antenna position information. For Early Science, these tables will either be pre-applied or supplied with the data.

This guide requires Python module analysisUtils. If you have not already installed analysisUtils please follow the link to do so.

To begin, start CASA by typing

casapy

Be sure that you are using the version indicated at the top of this page.

Confirm your version of CASA

This guide has been written for CASA release 4.1.0. Please confirm your version before proceeding.

# In CASA
version = casadef.casa_version
print "You are using " + version
if (version < '4.1.0'):
    print "YOUR VERSION OF CASA IS TOO OLD FOR THIS GUIDE."
    print "PLEASE UPDATE IT BEFORE PROCEEDING."
else:
    print "Your version of CASA is appropriate for this guide."

Install Analysis Utilities

Analysis Utilities (or analysisUtils for short) is a small set of Python scripts that provide a number of analysis and plotting utilities for ALMA data reduction. This guide uses a few of these utilities. They are very easy to install (just download and untar). See

http://casaguides.nrao.edu/index.php?title=Analysis_Utilities

for a full description and download instructions. Analysis Utilities are updated frequently so if its been a while since you installed it, its probably worth doing it again. If you are at an ALMA site or ARC, the analysis utilities are probably already installed and up to date.

Initial Inspection

First we will take stock of what we have. If you have not already done so, begin by reviewing the description of the observations here: M100Band3. The 6 data sets each target mosaic, as follows:

uid___A002_X5e971a_X124.ms
uid___A002_X5e971a_X2e7.ms
uid___A002_X5e9ff1_X3f3.ms
uid___A002_X5e9ff1_X5b3.ms
uid___A002_X60b415_X44.ms
uid___A002_X62f759_X4eb.ms

The first step is to get basic information about the data: targets observed, time range, spectral setup, and so on. We do this using the task listobs, which will output a detailed summary of each dataset. Enter the following commands into CASA:

# In CASA

# Define a python list holding the names of all of our data sets
basename=['uid___A002_X5e971a_X124','uid___A002_X5e971a_X2e7','uid___A002_X5e9ff1_X3f3','uid___A002_X5e9ff1_X5b3', 'uid___A002_X60b415_X44','uid___A002_X62f759_X4eb']

# Initialize user-input string.  (for Python testing)
dummy_string = ''

# Loop over each element in the list and create summary file using listobs
for asdm in basename_all:
    os.system('rm '+asdm+'.listobs.txt')
    listobs(vis=asdm+'.ms', listfile=asdm+'.listobs.txt', verbose=True)

Note that after cutting and pasting a 'for' loop like this you often have to press return twice to execute. You may also want to take care to paste a line at a time if you are having trouble copy and pasting. Even better, you can use "cpaste" to paste blocks of code. To do so type "cpaste" at the CASA prompt, paste your commands, and then type "--" and hit return on the final (otherwise empty) line. This should look something like this:


CASA <8>: cpaste
Pasting code; enter '--' alone on the line to stop.
:basename=['uid___A002_X5e971a_X124','uid___A002_X5e971a_X2e7','uid___A002_X5e9ff1_X3f3','uid___A002_X5e9ff1_X5b3', 'uid___A002_X60b415_X44','uid___A002_X62f759_X4eb']
:
:for asdm in basename_all:
:    print asdm
:--
uid___A002_X5e971a_X124
uid___A002_X5e971a_X2e7
uid___A002_X5e9ff1_X3f3
uid___A002_X5e9ff1_X5b3
uid___A002_X60b415_X44
uid___A002_X62f759_X4eb

CASA <9>:

cpaste should be much more robust than copying-and-pasting directly into the shell but if you have trouble, just carefully paste one line at a time directly into CASA and hit return until the desired command executes.

These commands define a python list called "basename_all", which contains the name of all 6 MS files. The "for" loop executes for each element in basename_all, calling listobs and directing the output to a file called, e.g., "uid___A002_X5e971a_X124.ms.listobs.txt" for the first measurement set. You can browse through the listobs output as you would normally look at a text file (use emacs, vi, or another editor). You can also send the output to the terminal from inside of CASA. To do so type:

# In CASA
os.system('cat uid___A002_X5e971a_X124.ms.listobs.txt')

or

# In CASA
os.system('more uid___A002_X5e971a_X124.ms.listobs.txt')

CASA knows a few basic shell commands like 'cat', 'ls', and 'rm' but for more complex commands you will need to run them inside 'os.system("command")'. For more information see http://casa.nrao.edu/ .

Here is an example of the (abridged) output from listobs for the first dataset in the list, uid___A002_X5e971a_X124.ms, which targets the Northern Mosaic. You would see this if you had specified verbose to be False in the listobs call:

================================================================================
           MeasurementSet Name:  /lustre/naasc/almauser/M100Band3/uid___A002_X5e971a_X124.ms      MS Version 2
================================================================================
    Observer: cvlahakis     Project: uid://A002/X5d9e5c/X5d  
Observation: ALMA
Data records: 940680       Total integration time = 5436.77 seconds
   Observed from   17-Mar-2013/04:07:32.8   to   17-Mar-2013/05:38:09.6 (UTC)

   ObservationID = 0         ArrayID = 0
  Date        Timerange (UTC)          Scan  FldId FieldName           nRows   nUnflRows   SpwIds   Average Interval(s)    ScanIntent
  17-Mar-2013/04:07:32.3 - 04:09:35.4     1      0 J1229+0203            43200  43200.00  [0, 1, 2, 3, 4, 5, 6, 7]  [1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01] CALIBRATE_POINTING#ON_SOURCE
              04:10:57.2 - 04:11:57.7     2      0 J1229+0203            45360  45360.00  [8, 9, 10, 11, 12, 13, 14, 15]  [0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48] CALIBRATE_SIDEBAND_RATIO#ON_SOURCE
              04:12:48.5 - 04:14:00.0     3      0 J1229+0203            12960  12960.00  [8, 9, 10, 11, 12, 13, 14, 15]  [0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48] CALIBRATE_ATMOSPHERE#ON_SOURCE
              04:14:44.2 - 04:24:49.9     4      0 J1229+0203           118800  44880.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_BANDPASS#ON_SOURCE
              04:25:53.4 - 04:27:56.4     5      1 J1445-1629            43200  43200.00  [0, 1, 2, 3, 4, 5, 6, 7]  [1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01] CALIBRATE_POINTING#ON_SOURCE
              04:29:02.6 - 04:30:13.9     6      2 Titan                 12960  12960.00  [8, 9, 10, 11, 12, 13, 14, 15]  [0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48] CALIBRATE_ATMOSPHERE#ON_SOURCE
              04:30:57.7 - 04:36:00.5     7      2 Titan                 59400  22468.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_AMPLI#ON_SOURCE
              04:37:10.1 - 04:39:13.2     8      3 J1215+1654            43200  43200.00  [0, 1, 2, 3, 4, 5, 6, 7]  [1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01] CALIBRATE_POINTING#ON_SOURCE
              04:39:58.8 - 04:40:59.3     9      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              04:42:08.6 - 04:43:20.0    10      4 M100                  12960  12960.00  [8, 9, 10, 11, 12, 13, 14, 15]  [0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48] CALIBRATE_ATMOSPHERE#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11      5 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11      6 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11      7 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11      8 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11      9 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     10 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     11 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     12 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     13 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     14 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     15 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     16 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:44:04.3 - 04:50:43.7    11     17 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:51:04.3 - 04:52:04.8    12      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13      5 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13      6 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13      7 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     18 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     19 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     20 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     21 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     22 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     23 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     24 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     25 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     26 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     27 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:59:35.7 - 05:00:36.2    14      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              05:01:55.1 - 05:03:06.5    15      4 M100                  12960  12960.00  [8, 9, 10, 11, 12, 13, 14, 15]  [0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48] CALIBRATE_ATMOSPHERE#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16      8 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16      9 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     10 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     11 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     12 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     13 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     14 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     15 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     16 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     17 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     18 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     19 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     20 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:10:50.7 - 05:11:51.2    17      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      5 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      6 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      7 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      8 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      9 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     10 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     21 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     22 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     23 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     24 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     25 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     26 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     27 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:19:22.0 - 05:20:22.6    19      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     20 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     21 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     22 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     23 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     24 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     25 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     26 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:52:35.8 - 04:59:15.3    13     27 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              04:59:35.7 - 05:00:36.2    14      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              05:01:55.1 - 05:03:06.5    15      4 M100                  12960  12960.00  [8, 9, 10, 11, 12, 13, 14, 15]  [0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48] CALIBRATE_ATMOSPHERE#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16      8 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16      9 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     10 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     11 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     12 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     13 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     14 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     15 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     16 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     17 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     18 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     19 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:03:22.2 - 05:10:01.6    16     20 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:10:50.7 - 05:11:51.2    17      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      5 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      6 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      7 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      8 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18      9 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     10 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     21 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     22 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     23 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     24 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     25 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     26 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:12:22.0 - 05:19:01.4    18     27 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:19:22.0 - 05:20:22.6    19      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              05:21:41.7 - 05:22:53.4    20      4 M100                  12960  12960.00  [8, 9, 10, 11, 12, 13, 14, 15]  [0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48, 0.48] CALIBRATE_ATMOSPHERE#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     11 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     12 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     13 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     14 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     15 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     16 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     17 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     18 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     19 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     20 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     21 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     22 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:23:37.6 - 05:30:17.0    21     23 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:30:37.5 - 05:31:38.1    22      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23      5 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23      6 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23      7 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23      8 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23      9 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23     24 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23     25 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23     26 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:32:08.4 - 05:36:44.7    23     27 M100                   5940   2244.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] OBSERVE_TARGET#ON_SOURCE
              05:37:09.6 - 05:38:10.1    24      3 J1215+1654            11880   4488.00  [16, 17, 18, 19, 20, 21, 22, 23]  [10.1, 1.01, 10.1, 1.01, 10.1, 1.01, 10.1, 1.01] CALIBRATE_PHASE#ON_SOURCE
           (nRows = Total number of rows per scan) 
Fields: 28
  ID   Code Name                RA               Decl           Epoch   SrcId    nRows  nUnflRows
  0    none J1229+0203          12:29:06.699720 +02.03.08.59820 J2000   0       220320  146400.00
  1    none J1445-1629          14:45:53.376290 -16.29.01.61880 J2000   1        43200   43200.00
  2    none Titan               14:36:50.919019 -12.33.38.18202 J2000   1        72360   35428.00
  3    none J1215+1654          12:15:03.979130 +16.54.37.95700 J2000   2       126360   74616.00
  4    none M100                12:22:54.899040 +15.49.20.57160 J2000   2        38880   38880.00
  5    none M100                12:22:57.009007 +15.49.13.60358 J2000   3        23760    8976.00
  6    none M100                12:22:57.009041 +15.49.58.08112 J2000   3        23760    8976.00
  7    none M100                12:22:54.339884 +15.47.22.41016 J2000   3        23760    8976.00
  8    none M100                12:22:54.339918 +15.48.06.88770 J2000   3        23760    8976.00
  9    none M100                12:22:54.339952 +15.48.51.36524 J2000   3        23760    8976.00
  10   none M100                12:22:54.339986 +15.49.35.84278 J2000   3        17820    6732.00
  11   none M100                12:22:54.340020 +15.50.20.32032 J2000   3        17820    6732.00
  12   none M100                12:22:51.670863 +15.47.44.64936 J2000   3        17820    6732.00
  13   none M100                12:22:51.670897 +15.48.29.12690 J2000   3        17820    6732.00
  14   none M100                12:22:51.670931 +15.49.13.60444 J2000   3        17820    6732.00
  15   none M100                12:22:51.670966 +15.49.58.08198 J2000   3        17820    6732.00
  16   none M100                12:22:49.001808 +15.47.22.41102 J2000   3        17820    6732.00
  17   none M100                12:22:49.001842 +15.48.06.88856 J2000   3        17820    6732.00
  18   none M100                12:22:49.001876 +15.48.51.36610 J2000   3        17820    6732.00
  19   none M100                12:22:49.001911 +15.49.35.84364 J2000   3        17820    6732.00
  20   none M100                12:22:49.001945 +15.50.20.32118 J2000   3        17820    6732.00
  21   none M100                12:22:59.677959 +15.47.22.40931 J2000   3        17820    6732.00
  22   none M100                12:22:59.677993 +15.48.06.88685 J2000   3        17820    6732.00
  23   none M100                12:22:59.678027 +15.48.51.36439 J2000   3        17820    6732.00
  24   none M100                12:22:59.678061 +15.49.35.84193 J2000   3        17820    6732.00
  25   none M100                12:22:59.678095 +15.50.20.31947 J2000   3        17820    6732.00
  26   none M100                12:22:57.008938 +15.47.44.64850 J2000   3        17820    6732.00
  27   none M100                12:22:57.008973 +15.48.29.12604 J2000   3        17820    6732.00
Spectral Windows:  (24 unique spectral windows and 1 unique polarization setups)
  SpwID  Name                           #Chans   Frame   Ch1(MHz)  ChanWid(kHz)  TotBW(kHz) BBC Num  Corrs  
  0      ALMA_RB_03#BB_1#SW-01#FULL_RES    124   TOPO   91955.512    -15625.000   1937500.0       1  XX  YY
  1      ALMA_RB_03#BB_1#SW-01#CH_AVG        1   TOPO   90986.762   1937500.000   1937500.0       1  XX  YY
  2      ALMA_RB_03#BB_2#SW-01#FULL_RES    124   TOPO   93893.012    -15625.000   1937500.0       2  XX  YY
  3      ALMA_RB_03#BB_2#SW-01#CH_AVG        1   TOPO   92924.262   1937500.000   1937500.0       2  XX  YY
  4      ALMA_RB_03#BB_3#SW-01#FULL_RES    124   TOPO  102033.637     15625.000   1937500.0       3  XX  YY
  5      ALMA_RB_03#BB_3#SW-01#CH_AVG        1   TOPO  102986.762   1937500.000   1937500.0       3  XX  YY
  6      ALMA_RB_03#BB_4#SW-01#FULL_RES    124   TOPO  104033.637     15625.000   1937500.0       4  XX  YY
  7      ALMA_RB_03#BB_4#SW-01#CH_AVG        1   TOPO  104986.762   1937500.000   1937500.0       4  XX  YY
  8      ALMA_RB_03#BB_1#SW-01#FULL_RES    128   TOPO  101942.187    -15625.000   2000000.0       1  XX  YY
  9      ALMA_RB_03#BB_1#SW-01#CH_AVG        1   TOPO  100926.562   1781250.000   1781250.0       1  XX  YY
  10     ALMA_RB_03#BB_2#SW-01#FULL_RES    128   TOPO  103757.337    -15625.000   2000000.0       2  XX  YY
  11     ALMA_RB_03#BB_2#SW-01#CH_AVG        1   TOPO  102741.712   1781250.000   1781250.0       2  XX  YY
  12     ALMA_RB_03#BB_3#SW-01#FULL_RES    128   TOPO  111814.962     15625.000   2000000.0       3  XX  YY
  13     ALMA_RB_03#BB_3#SW-01#CH_AVG        1   TOPO  112783.712   1781250.000   1781250.0       3  XX  YY
  14     ALMA_RB_03#BB_4#SW-01#FULL_RES    128   TOPO  113689.962     15625.000   2000000.0       4  XX  YY
  15     ALMA_RB_03#BB_4#SW-01#CH_AVG        1   TOPO  114658.712   1781250.000   1781250.0       4  XX  YY
  16     ALMA_RB_03#BB_1#SW-01#FULL_RES   4080   TOPO  101945.850      -488.281   1992187.5       1  XX  YY
  17     ALMA_RB_03#BB_1#SW-01#CH_AVG        1   TOPO  100949.756   1992187.500   1992187.5       1  XX  YY
  18     ALMA_RB_03#BB_2#SW-01#FULL_RES   4080   TOPO  103761.000      -488.281   1992187.5       2  XX  YY
  19     ALMA_RB_03#BB_2#SW-01#CH_AVG        1   TOPO  102764.906   1992187.500   1992187.5       2  XX  YY
  20     ALMA_RB_03#BB_3#SW-01#FULL_RES   4080   TOPO  111811.300       488.281   1992187.5       3  XX  YY
  21     ALMA_RB_03#BB_3#SW-01#CH_AVG        1   TOPO  112806.906   1992187.500   1992187.5       3  XX  YY
  22     ALMA_RB_03#BB_4#SW-01#FULL_RES   4080   TOPO  113686.300       488.281   1992187.5       4  XX  YY
  23     ALMA_RB_03#BB_4#SW-01#CH_AVG        1   TOPO  114681.906   1992187.500   1992187.5       4  XX  YY
Sources: 80
  ID   Name                SpwId RestFreq(MHz)  SysVel(km/s) 
  0    J1229+0203          0     -              -            
  0    J1229+0203          1     -              -            
  0    J1229+0203          2     -              -            
  0    J1229+0203          3     -              -            
  0    J1229+0203          4     -              -            
  0    J1229+0203          5     -              -            
  0    J1229+0203          6     -              -            
  0    J1229+0203          7     -              -            
  0    J1229+0203          8     -              -            
  0    J1229+0203          9     -              -            
  0    J1229+0203          10    -              -            
  0    J1229+0203          11    -              -            
  0    J1229+0203          12    -              -            
  0    J1229+0203          13    -              -            
  0    J1229+0203          14    -              -            
  0    J1229+0203          15    -              -            
  0    J1229+0203          16    100950         0            
  0    J1229+0203          17    100950         0            
  0    J1229+0203          18    102794.1       0            
  0    J1229+0203          19    102794.1       0            
  0    J1229+0203          20    112794.1       0            
  0    J1229+0203          21    112794.1       0            
  0    J1229+0203          22    114669.1       0            
  0    J1229+0203          23    114669.1       0            
  1    J1445-1629          0     -              -            
  1    J1445-1629          1     -              -            
  1    J1445-1629          2     -              -            
  1    J1445-1629          3     -              -            
  1    J1445-1629          4     -              -            
  1    J1445-1629          5     -              -            
  1    J1445-1629          6     -              -            
  1    J1445-1629          7     -              -            
  1    Titan               8     -              -            
  1    Titan               9     -              -            
  1    Titan               10    -              -            
  1    Titan               11    -              -            
  1    Titan               12    -              -            
  1    Titan               13    -              -            
  1    Titan               14    -              -            
  1    Titan               15    -              -            
  1    Titan               16    100950         0            
  1    Titan               17    100950         0            
  1    Titan               18    102794.1       0            
  1    Titan               19    102794.1       0            
  1    Titan               20    112794.1       0            
  1    Titan               21    112794.1       0            
  1    Titan               22    114669.1       0            
  1    Titan               23    114669.1       0            
  2    J1215+1654          0     -              -            
  2    J1215+1654          1     -              -            
  2    J1215+1654          2     -              -            
  2    J1215+1654          3     -              -            
  2    J1215+1654          4     -              -            
  2    J1215+1654          5     -              -            
  2    J1215+1654          6     -              -            
  2    J1215+1654          7     -              -            
  2    J1215+1654          16    100950         0            
  2    J1215+1654          17    100950         0            
  2    J1215+1654          18    102794.1       0            
  2    J1215+1654          19    102794.1       0            
  2    J1215+1654          20    112794.1       0            
  2    J1215+1654          21    112794.1       0            
  2    J1215+1654          22    114669.1       0            
  2    J1215+1654          23    114669.1       0            
  2    M100                8     -              -            
  2    M100                9     -              -            
  2    M100                10    -              -            
  2    M100                11    -              -            
  2    M100                12    -              -            
  2    M100                13    -              -            
  2    M100                14    -              -            
  2    M100                15    -              -            
  3    M100                16    100950         0            
  3    M100                17    100950         0            
  3    M100                18    102794.1       0            
  3    M100                19    102794.1       0            
  3    M100                20    112794.1       0            
  3    M100                21    112794.1       0            
  3    M100                22    114669.1       0            
  3    M100                23    114669.1       0            
Antennas: 9:
  ID   Name  Station   Diam.    Long.         Lat.                Offset from array center (m)                ITRF Geocentric coordinates (m)        
                                                                     East         North     Elevation               x               y               z
  0    CM01  N602      7.0  m   -067.45.17.4  -22.53.22.3          8.8026     -527.8556       22.1988  2225080.352214 -5440132.953723 -2481524.785064
  1    CM02  J502      7.0  m   -067.45.17.7  -22.53.23.0          2.1079     -549.4459       22.1451  2225070.958100 -5440127.669506 -2481544.654450
  2    CM03  J503      7.0  m   -067.45.17.4  -22.53.23.2          9.2488     -555.0633       22.1293  2225076.734603 -5440122.930506 -2481549.823442
  3    CM04  N605      7.0  m   -067.45.17.4  -22.53.23.9          9.6883     -575.8319       22.0821  2225074.066737 -5440115.246896 -2481568.938246
  4    CM05  J506      7.0  m   -067.45.17.9  -22.53.23.2         -4.9539     -555.3433       22.1258  2225063.547041 -5440128.203265 -2481550.079981
  5    CM06  N606      7.0  m   -067.45.17.1  -22.53.23.6         19.1996     -566.5626       22.0993  2225084.240791 -5440114.998068 -2481560.405534
  6    CM07  N601      7.0  m   -067.45.17.0  -22.53.22.5         21.0601     -532.5792       22.2041  2225091.003357 -5440126.617491 -2481529.138855
  7    CM09  N603      7.0  m   -067.45.17.7  -22.53.22.3         -0.0719     -527.8532       22.2212  2225072.146648 -5440136.333195 -2481524.791579
  8    CM12  J504      7.0  m   -067.45.17.0  -22.53.23.0         22.2032     -550.2530       22.1451  2225089.438350 -5440119.771735 -2481545.398029

This output shows that three sources were observed in each data set: 3c279, Titan, and the M100.

The M100 are our science target. Note that the source corresponds to a number of individual fields (see the Field ID column). These are the individual mosaic pointings. There are 23 for M100 Mosaic.
Titan is observed once and will be used to set the absolute flux scale of the data.
3c279 plays two roles: it will serve as our bandpass calibrator, to characterize the frequency response of the antennas, and because it is fairly close on the sky to the M100, it will serve as our secondary calibrator (also referred to as the "phase calibrator" or "gain calibrator"), to track changes in the phase and amplitude response of the telescopes over time. Observations of 3c279 are interleaved with observations of the M100.

The output also shows that the data contain many spectral windows. Using the labeling scheme in the listobs above these are:

spw 0 targets ~185 GHz and holds water vapor radiometer data
spw 1 and spw 3 hold our science data. These are "Frequency Domain Mode" (FDM) data with small (0.49 MHz) channel width and wide (1.875 GHz) total bandwidth. As a result these have a lot of channels (3840). spw 1 holds the lower sideband (LSB) data and includes the CO(3-2) line. We will focus on these data. For the CO(3-2) line the channel width corresponds to 0.426 km/s and the bandwidth of spw 1 to 1634 km/s.
spw 2 and spw 4 hold frequency-averaged versions of spw 1 and 3 ("Channel 0" for those familiar with AIPS). These are used for some quick automated inspection. We will not use them here but we will carry out an equivalent inspection using spw 1.
spw 5 and spw 7 hold lower a resolution processing ("Time Domain Mode", TDM) of the data from the same part of the spectrum (baseband) as spws 1 and 3. These data have only 128 channels across 2 GHz bandwidth and so have a much coarser channel spacing than the FDM data. These were used to generate the calibration tables that we include in the tarball but will not otherwise appear in this guide.

The final column of the listobs output in the logger (not shown above) gives the scan intent. Later we will use this information to flag the pointing scans and the hot and ambient load calibration scans.

We'll now have a look at the configuration of the antennas used to take the data using the task plotants (<xr id="Uid_A002_X1ff7b0_Xb.ANT.png"/>).

Position of antennas in dataset uid_A002_X1ff7b0_Xb obtained using task plotants

</figure>

# In CASA
basename=['uid___A002_X5e971a_X124','uid___A002_X5e971a_X2e7','uid___A002_X5e9ff1_X3f3','uid___A002_X5e9ff1_X5b3', 'uid___A002_X60b415_X44','uid___A002_X62f759_X4eb']

for asdm in basename_all:
    print "Antenna configuration for : "+asdm
    plotants(vis=asdm+'.ms', figfile=asdm+'.plotants.png')
    clearstat()
    dummy_string = raw_input("Hit <Enter> to see the antenna configuration for the next data set.")

This will loop through all 6 data sets, show you the antenna position for each, and save that as a file named, e.g., "uid___A002_X1ff7b0_Xb.plotants.png" for the first data set. The "raw_input" command asks CASA to wait for your input before proceeding. If you would prefer to just browse the .png files after the fact you can remove this. Notice that the antenna setup changes, but only slightly, over the course of the 10 data sets.

M100 Band3 ACA 4.2.2: Difference between revisions

Revision as of 04:59, 7 June 2013

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@@ Line 127: / Line 127: @@
 cpaste should be ''much'' more robust than copying-and-pasting directly into the shell but if you have trouble, just carefully paste one line at a time directly into CASA and hit return until the desired command executes.
-These commands define a python list called "basename_all", which contains the name of all 6 MS files. The "for" loop executes for each element in basename_all, calling listobs and directing the output to a file called, e.g., "uid___A002_X5e971a_X124.listobs.txt" for the first measurement set. You can browse through the listobs output as you would normally look at a text file (use emacs, vi, or another editor). You can also send the output to the terminal from inside of CASA. To do so type:
+These commands define a python list called "basename_all", which contains the name of all 6 MS files. The "for" loop executes for each element in basename_all, calling listobs and directing the output to a file called, e.g., "uid___A002_X5e971a_X124.ms.listobs.txt" for the first measurement set. You can browse through the listobs output as you would normally look at a text file (use emacs, vi, or another editor). You can also send the output to the terminal from inside of CASA. To do so type:
 <source lang="python">
 # In CASA
-os.system('cat uid___A002_X60b415_X44.listobs.txt')
+os.system('cat uid___A002_X5e971a_X124.ms.listobs.txt')
 </source>
@@ Line 138: / Line 138: @@
 <source lang="python">
 # In CASA
-os.system('more uid___A002_X60b415_X44.listobs.txt')
+os.system('more uid___A002_X5e971a_X124.ms.listobs.txt')
 </source>
 CASA knows a few basic shell commands like 'cat', 'ls', and 'rm' but for more complex commands you will need to run them inside 'os.system("command")'. For more information see http://casa.nrao.edu/ .
-Here is an example of the (abridged) output from {{listobs}} for the first dataset in the list, uid___A002_X60b415_X44.ms, which targets the Northern Mosaic. You would see this if you had specified '''verbose''' to be False in the listobs call:
+Here is an example of the (abridged) output from {{listobs}} for the first dataset in the list, uid___A002_X5e971a_X124.ms, which targets the Northern Mosaic. You would see this if you had specified '''verbose''' to be False in the listobs call:
 <pre style="background-color: #fffacd;">
 ================================================================================
-            MeasurementSet Name:  /lustre/naasc/almauser/M100Band3/uid___A002_X60b415_X44.ms      MS Version 2
+            MeasurementSet Name:  /lustre/naasc/almauser/M100Band3/uid___A002_X5e971a_X124.ms      MS Version 2
 ================================================================================
-   Observer: cvlahakis     Project: uid://A002/X5d9e5c/X3e5
+    Observer: cvlahakis     Project: uid://A002/X5d9e5c/X5d
 Observation: ALMA
-Data records: 867780       Total integration time = 5258.45 seconds
+Data records: 940680       Total integration time = 5436.77 seconds
-    Observed from   14-Apr-2013/03:34:07.7   to   14-Apr-2013/05:01:46.1 (UTC)
+    Observed from   17-Mar-2013/04:07:32.8   to   17-Mar-2013/05:38:09.6 (UTC)
     ObservationID = 0         ArrayID = 0
    Date        Timerange (UTC)          Scan  FldId FieldName           nRows   nUnflRows   SpwIds   Average Interval(s)    ScanIntent
--Apr-2013/03:34:07.2 - 03:36:10.2     1      0 J1229+0203            43200  43200.00  [0, 1, 2, 3, 4, 5, 6, 7]  [1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01
+-Mar-2013/04:07:32.3 - 04:09:35.4     1      0 J1229+0203            43200  43200.00  [0, 1, 2, 3, 4, 5, 6, 7]  [1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01, 1.01] CALIBRATE_POINTING#ON_SOURCE
+:10:57.2 - 04:11:57.7     2      0 J1229+0203            45360  45360.00  [8, 9, 10, 11,
             (nRows = Total number of rows per scan)
-Fields: 27
+Fields: 28
    ID   Code Name                RA               Decl           Epoch   SrcId    nRows  nUnflRows
     none J1229+0203          12:29:06.699720 +02.03.08.59820 J2000   0       220320  146400.00
-    none Titan               14:30:17.288151 -11.57.52.07612 J2000   1        72360   35400.00
+   none J1445-1629          14:45:53.376290 -16.29.01.61880 J2000   1        43200   43200.00
-   none J1215+1654          12:15:03.979130 +16.54.37.95700 J2000   2       165240  113496.00
+   none Titan               14:36:50.919019 -12.33.38.18202 J2000   1        72360   35428.00
-   none M100                12:22:57.009007 +15.49.13.60358 J2000   3        17820    6732.00
+   none J1215+1654          12:15:03.979130 +16.54.37.95700 J2000   2       126360   74616.00
-   none M100                12:22:57.009041 +15.49.58.08112 J2000   3        17820    6732.00
+    none M100                12:22:54.899040 +15.49.20.57160 J2000   2        38880   38880.00
-   none M100                12:22:54.339884 +15.47.22.41016 J2000   3        17820    6732.00
+   none M100                12:22:57.009007 +15.49.13.60358 J2000   3        23760    8976.00
-   none M100                12:22:54.339918 +15.48.06.88770 J2000   3        17820    6732.00
+   none M100                12:22:57.009041 +15.49.58.08112 J2000   3        23760    8976.00
-   none M100                12:22:54.339952 +15.48.51.36524 J2000   3        17820    6732.00
+   none M100                12:22:54.339884 +15.47.22.41016 J2000   3        23760    8976.00
-    none M100                12:22:54.339986 +15.49.35.84278 J2000   3        17820    6732.00
+   none M100                12:22:54.339918 +15.48.06.88770 J2000   3        23760    8976.00
-    none M100                12:22:54.340020 +15.50.20.32032 J2000   3        17820    6732.00
+   none M100                12:22:54.339952 +15.48.51.36524 J2000   3        23760    8976.00
-  none M100                12:22:51.670863 +15.47.44.64936 J2000   3        17820    6732.00
+   none M100                12:22:54.339986 +15.49.35.84278 J2000   3        17820    6732.00
-  none M100                12:22:51.670897 +15.48.29.12690 J2000   3        17820    6732.00
+   none M100                12:22:54.340020 +15.50.20.32032 J2000   3        17820    6732.00
-  none M100                12:22:51.670931 +15.49.13.60444 J2000   3        17820    6732.00
+  none M100                12:22:51.670863 +15.47.44.64936 J2000   3        17820    6732.00
-  none M100                12:22:51.670966 +15.49.58.08198 J2000   3        17820    6732.00
+  none M100                12:22:51.670897 +15.48.29.12690 J2000   3        17820    6732.00
-  none M100                12:22:49.001808 +15.47.22.41102 J2000   3        17820    6732.00
+  none M100                12:22:51.670931 +15.49.13.60444 J2000   3        17820    6732.00
-  none M100                12:22:49.001842 +15.48.06.88856 J2000   3        17820    6732.00
+  none M100                12:22:51.670966 +15.49.58.08198 J2000   3        17820    6732.00
-   none M100-2              12:22:59.677993 +15.48.06.88685 J2000   4         5940    2396.00
+  none M100                12:22:49.001808 +15.47.22.41102 J2000   3        17820    6732.00
-  none M100                12:22:49.001876 +15.48.51.36610 J2000   3        17820    6732.00
+  none M100                12:22:49.001842 +15.48.06.88856 J2000   3        17820    6732.00
-  none M100                12:22:49.001911 +15.49.35.84364 J2000   3        17820    6732.00
+  none M100                12:22:49.001876 +15.48.51.36610 J2000   3        17820    6732.00
-  none M100                12:22:49.001945 +15.50.20.32118 J2000   3        17820    6732.00
+  none M100                12:22:49.001911 +15.49.35.84364 J2000   3        17820    6732.00
-  none M100                12:22:59.677959 +15.47.22.40931 J2000   3        17820    6732.00
+  none M100                12:22:49.001945 +15.50.20.32118 J2000   3        17820    6732.00
-  none M100                12:22:59.677993 +15.48.06.88685 J2000   3        17820    6732.00
+  none M100                12:22:59.677959 +15.47.22.40931 J2000   3        17820    6732.00
-  none M100                12:22:59.678027 +15.48.51.36439 J2000   3        17820    6732.00
+  none M100                12:22:59.677993 +15.48.06.88685 J2000   3        17820    6732.00
-  none M100                12:22:59.678061 +15.49.35.84193 J2000   3        17820    6732.00
+  none M100                12:22:59.678027 +15.48.51.36439 J2000   3        17820    6732.00
-  none M100                12:22:59.678095 +15.50.20.31947 J2000   3        17820    6732.00
+  none M100                12:22:59.678061 +15.49.35.84193 J2000   3        17820    6732.00
-  none M100                12:22:57.008938 +15.47.44.64850 J2000   3        17820    6732.00
+  none M100                12:22:59.678095 +15.50.20.31947 J2000   3        17820    6732.00
-  none M100                12:22:57.008973 +15.48.29.12604 J2000   3        11880    4488.00
+  none M100                12:22:57.008938 +15.47.44.64850 J2000   3        17820    6732.00
+  none M100                12:22:57.008973 +15.48.29.12604 J2000   3        17820    6732.00
 Spectral Windows:  (24 unique spectral windows and 1 unique polarization setups)
    SpwID  Name                           #Chans   Frame   Ch1(MHz)  ChanWid(kHz)  TotBW(kHz) BBC Num  Corrs
@@ Line 324: / Line 369: @@
     J1229+0203          22    114669.1       0
     J1229+0203          23    114669.1       0
+    J1445-1629          0     -              -
+    J1445-1629          1     -              -
+    J1445-1629          2     -              -
+    J1445-1629          3     -              -
+    J1445-1629          4     -              -
+    J1445-1629          5     -              -
+    J1445-1629          6     -              -
+    J1445-1629          7     -              -
     Titan               8     -              -
     Titan               9     -              -
@@ Line 340: / Line 393: @@
     Titan               22    114669.1       0
     Titan               23    114669.1       0
-    J1215+1654          8     -              -
+    J1215+1654          0     -              -
-    J1215+1654          9     -              -
+    J1215+1654          1     -              -
-    J1215+1654          10    -              -
+    J1215+1654          2     -              -
-    J1215+1654          11    -              -
+    J1215+1654          3     -              -
-    J1215+1654          12    -              -
+    J1215+1654          4     -              -
-    J1215+1654          13    -              -
+    J1215+1654          5     -              -
-    J1215+1654          14    -              -
+    J1215+1654          6     -              -
-    J1215+1654          15    -              -
+    J1215+1654          7     -              -
     J1215+1654          16    100950         0
     J1215+1654          17    100950         0
@@ Line 356: / Line 409: @@
     J1215+1654          22    114669.1       0
     J1215+1654          23    114669.1       0
+    M100                8     -              -
+    M100                9     -              -
+    M100                10    -              -
+    M100                11    -              -
+    M100                12    -              -
+    M100                13    -              -
+    M100                14    -              -
+    M100                15    -              -
     M100                16    100950         0
     M100                17    100950         0
@@ Line 364: / Line 425: @@
     M100                22    114669.1       0
     M100                23    114669.1       0
-    M100-2              16    100950         0
-    M100-2              17    100950         0
-    M100-2              18    102794.1       0
-    M100-2              19    102794.1       0
-    M100-2              20    112794.1       0
-    M100-2              21    112794.1       0
-    M100-2              22    114669.1       0
-    M100-2              23    114669.1       0
-    J1215+1654          0     -              -
-    J1215+1654          1     -              -
-    J1215+1654          2     -              -
-    J1215+1654          3     -              -
-    J1215+1654          4     -              -
-    J1215+1654          5     -              -
-    J1215+1654          6     -              -
-    J1215+1654          7     -              -
 Antennas: 9:
    ID   Name  Station   Diam.    Long.         Lat.                Offset from array center (m)                ITRF Geocentric coordinates (m)
                                                                       East         North     Elevation               x               y               z
-    CM01  N602      7.0  m   -067.45.17.4  -22.53.22.3          8.8051     -527.8582       22.2020  2225080.355251 -5440132.954544 -2481524.788728
+    CM01  N602      7.0  m   -067.45.17.4  -22.53.22.3          8.8026     -527.8556       22.1988  2225080.352214 -5440132.953723 -2481524.785064
-    CM02  J502      7.0  m   -067.45.17.7  -22.53.23.0          2.1080     -549.4457       22.1445  2225070.957996 -5440127.669076 -2481544.654037
+    CM02  J502      7.0  m   -067.45.17.7  -22.53.23.0          2.1079     -549.4459       22.1451  2225070.958100 -5440127.669506 -2481544.654450
-    CM03  J503      7.0  m   -067.45.17.4  -22.53.23.2          9.2490     -555.0632       22.1288  2225076.734614 -5440122.930049 -2481549.823089
+    CM03  J503      7.0  m   -067.45.17.4  -22.53.23.2          9.2488     -555.0633       22.1293  2225076.734603 -5440122.930506 -2481549.823442
-    CM04  N605      7.0  m   -067.45.17.4  -22.53.23.9          9.6893     -575.8354       22.0848  2225074.068123 -5440115.247556 -2481568.942507
+    CM04  N605      7.0  m   -067.45.17.4  -22.53.23.9          9.6883     -575.8319       22.0821  2225074.066737 -5440115.246896 -2481568.938246
-    CM05  J506      7.0  m   -067.45.17.9  -22.53.23.2         -4.9545     -555.3423       22.1246  2225063.546149 -5440128.202838 -2481550.078574
+    CM05  J506      7.0  m   -067.45.17.9  -22.53.23.2         -4.9539     -555.3433       22.1258  2225063.547041 -5440128.203265 -2481550.079981
-    CM06  N606      7.0  m   -067.45.17.1  -22.53.23.6         19.2003     -566.5681       22.0994  2225084.240675 -5440114.995944 -2481560.410623
+    CM06  N606      7.0  m   -067.45.17.1  -22.53.23.6         19.1996     -566.5626       22.0993  2225084.240791 -5440114.998068 -2481560.405534
-    CM07  N601      7.0  m   -067.45.17.0  -22.53.22.5         21.0638     -532.5813       22.1847  2225090.999703 -5440126.598845 -2481529.133183
+    CM07  N601      7.0  m   -067.45.17.0  -22.53.22.5         21.0601     -532.5792       22.2041  2225091.003357 -5440126.617491 -2481529.138855
-    CM09  N603      7.0  m   -067.45.17.7  -22.53.22.3         -0.0492     -527.8651       22.1892  2225072.154695 -5440136.293016 -2481524.790109
+    CM09  N603      7.0  m   -067.45.17.7  -22.53.22.3         -0.0719     -527.8532       22.2212  2225072.146648 -5440136.333195 -2481524.791579
-    CM12  J504      7.0  m   -067.45.17.0  -22.53.23.0         22.2034     -550.2532       22.1445  2225089.438292 -5440119.771079 -2481545.397950
+    CM12  J504      7.0  m   -067.45.17.0  -22.53.23.0         22.2032     -550.2530       22.1451  2225089.438350 -5440119.771735 -2481545.398029
-</pre>
-And here is an extract from the full '''verbose''' {{listobs}} for uid___A002_X1ff7b0_X1c8.ms, which targets the Southern Mosaic (note that we have snipped out the record of individual scans):
-<pre style="background-color: #fffacd;">
-================================================================================
-           MeasurementSet Name:  /lustre/naasc/almauser/AntennaeBand7/uid___A002_X1ff7b0_X1c8.ms      MS Version 2
-================================================================================
-   Observer: Unknown     Project: T.B.D.
-Observation: ALMA
-Data records: 175615       Total integration time = 4927.1 seconds
-   Observed from   28-May-2011/02:50:18.2   to   28-May-2011/04:12:25.3 (UTC)
-<snip>
-Fields: 33
-  ID   Code Name                RA              Decl          Epoch   SrcId nVis
-    none 3c279               12:56:11.16657 -05.47.21.5247 J2000   0     12232
-    none Titan               12:42:44.82765 -01.43.41.4224 J2000   1     10615
-    none 3c279               12:56:11.16600 -05.47.21.5250 J2000   2     27764
-    none Antennae            12:01:53.17008 -18.52.37.9200 J2000   3     4829
-    none Antennae            12:01:52.18699 -18.53.30.3952 J2000   3     3883
-    none Antennae            12:01:52.64413 -18.53.26.6494 J2000   3     3883
-    none Antennae            12:01:53.10127 -18.53.22.9035 J2000   3     3872
-    none Antennae            12:01:53.55841 -18.53.19.1577 J2000   3     4818
-    none Antennae            12:01:54.01554 -18.53.15.4119 J2000   3     4829
-    none Antennae            12:01:54.47268 -18.53.11.6661 J2000   3     4829
-   none Antennae            12:01:54.92982 -18.53.07.9203 J2000   3     3872
-   none Antennae            12:01:55.38696 -18.53.04.1744 J2000   3     3883
-   none Antennae            12:01:55.84409 -18.53.00.4286 J2000   3     4840
-   none Antennae            12:01:56.30123 -18.52.56.6828 J2000   3     4818
-   none Antennae            12:01:52.18700 -18.53.22.9033 J2000   3     4829
-   none Antennae            12:01:52.64414 -18.53.19.1575 J2000   3     4818
-   none Antennae            12:01:53.10128 -18.53.15.4116 J2000   3     4818
-   none Antennae            12:01:53.55842 -18.53.11.6658 J2000   3     4840
-   none Antennae            12:01:54.01555 -18.53.07.9200 J2000   3     3872
-   none Antennae            12:01:54.47269 -18.53.04.1742 J2000   3     4829
-   none Antennae            12:01:54.92983 -18.53.00.4284 J2000   3     4829
-   none Antennae            12:01:55.38697 -18.52.56.6825 J2000   3     4829
-   none Antennae            12:01:55.84410 -18.52.52.9367 J2000   3     4829
-   none Antennae            12:01:51.72988 -18.53.19.1572 J2000   3     4818
-   none Antennae            12:01:52.18702 -18.53.15.4114 J2000   3     4829
-   none Antennae            12:01:52.64415 -18.53.11.6656 J2000   3     4829
-   none Antennae            12:01:53.10129 -18.53.07.9197 J2000   3     2266
-   none Antennae            12:01:53.55843 -18.53.04.1739 J2000   3     2266
-   none Antennae            12:01:54.01557 -18.53.00.4281 J2000   3     3212
-   none Antennae            12:01:54.47270 -18.52.56.6823 J2000   3     3234
-   none Antennae            12:01:54.92984 -18.52.52.9365 J2000   3     3212
-   none Antennae            12:01:55.38698 -18.52.49.1906 J2000   3     2266
-   none Antennae            12:01:55.84411 -18.52.45.4448 J2000   3     3223
-   (nVis = Total number of time/baseline visibilities per field)
-Spectral Windows:  (9 unique spectral windows and 2 unique polarization setups)
-  SpwID  #Chans Frame Ch1(MHz)    ChanWid(kHz)  TotBW(kHz)  Corrs
-           4 TOPO  184550      1500000       7500000     I
-        3840 TOPO  344845.586  488.28125     1875000     XX  YY
-           1 TOPO  343908.086  1875000       1875000     XX  YY
-        3840 TOPO  356845.586  488.28125     1875000     XX  YY
-           1 TOPO  343908.086  1875000       1875000     XX  YY
-         128 TOPO  344900.518  15625         2000000     XX  YY
-           1 TOPO  343892.705  1796875       1796875     XX  YY
-         128 TOPO  356900.518  15625         2000000     XX  YY
-           1 TOPO  343892.705  1796875       1796875     XX  YY
-Antennas: 11:
-  ID   Name  Station   Diam.    Long.         Lat.
-    DV02  A015      12.0 m   -067.45.15.3  -22.53.26.0
-    DV04  J505      12.0 m   -067.45.18.0  -22.53.22.8
-    DV06  T704      12.0 m   -067.45.16.2  -22.53.22.1
-    DV07  A004      12.0 m   -067.45.15.9  -22.53.28.0
-    DV08  A072      12.0 m   -067.45.12.6  -22.53.24.0
-    DV09  A008      12.0 m   -067.45.15.4  -22.53.26.8
-    DV10  A009      12.0 m   -067.45.16.1  -22.53.26.1
-    DV11  A016      12.0 m   -067.45.16.4  -22.53.25.1
-    PM01  T702      12.0 m   -067.45.18.6  -22.53.24.1
-    PM02  A017      12.0 m   -067.45.15.9  -22.53.26.8
-   PM03  J504      12.0 m   -067.45.17.0  -22.53.23.0
 </pre>
-This output shows that three sources were observed in each data set: 3c279, Titan, and the Antennae.
+This output shows that three sources were observed in each data set: 3c279, Titan, and the M100.
-* The '''Antennae''' are our science target. Note that the source name changes between the Northern Mosaic, where it is "NGC4038 - Antennae", and the Southern Mosaic, where it is just "Antennae". Also note that the source corresponds to a number of individual fields (see the Field ID column). These are the individual mosaic pointings. There are 23 for the Northern Mosaic and 29 for the Southern Mosaic.
+* The '''M100''' are our science target. Note that the source corresponds to a number of individual fields (see the Field ID column). These are the individual mosaic pointings. There are 23 for M100 Mosaic.
 * '''Titan''' is observed once and will be used to set the absolute flux scale of the data.
-* '''3c279''' plays two roles: it will serve as our bandpass calibrator, to characterize the frequency response of the antennas, and because it is fairly close on the sky to the Antennae (18.6 degrees away) it will serve as our secondary calibrator (also referred to as the "phase calibrator" or "gain calibrator"), to track changes in the phase and amplitude response of the telescopes over time. Observations of 3c279 are interleaved with observations of the Antennae.
+* '''3c279''' plays two roles: it will serve as our bandpass calibrator, to characterize the frequency response of the antennas, and because it is fairly close on the sky to the M100, it will serve as our secondary calibrator (also referred to as the "phase calibrator" or "gain calibrator"), to track changes in the phase and amplitude response of the telescopes over time. Observations of 3c279 are interleaved with observations of the M100.
 The output also shows that the data contain many spectral windows. Using the labeling scheme in the listobs above these are:
@@ Line 493: / Line 461: @@
 <source lang="python">
 # In CASA
-basename_all=["uid___A002_X1ff7b0_Xb","uid___A002_X207fe4_X3a","uid___A002_X207fe4_X3b9",
+basename=['uid___A002_X5e971a_X124','uid___A002_X5e971a_X2e7','uid___A002_X5e9ff1_X3f3','uid___A002_X5e9ff1_X5b3', 'uid___A002_X60b415_X44','uid___A002_X62f759_X4eb']
-     "uid___A002_X2181fb_X49","uid___A002_X1ff7b0_X1c8","uid___A002_X207fe4_X1f7",
-     "uid___A002_X207fe4_X4d7","uid___A002_X215db8_X18","uid___A002_X215db8_X1d5",
-     "uid___A002_X215db8_X392"]
 for asdm in basename_all:
@@ Line 506: / Line 470: @@
 </source>
-This will loop through all 10 data sets, show you the antenna position for each, and save that as a file named, e.g., "uid___A002_X1ff7b0_Xb.plotants.png" for the first data set. The "raw_input" command asks CASA to wait for your input before proceeding. If you would prefer to just browse the .png files after the fact you can remove this. Notice that the antenna setup changes, but only slightly, over the course of the 10 data sets.
+This will loop through all 6 data sets, show you the antenna position for each, and save that as a file named, e.g., "uid___A002_X1ff7b0_Xb.plotants.png" for the first data set. The "raw_input" command asks CASA to wait for your input before proceeding. If you would prefer to just browse the .png files after the fact you can remove this. Notice that the antenna setup changes, but only slightly, over the course of the 10 data sets.