Listcal
From CASA Guides
Help on listcal task:
List antenna gain solutions
This task lists antenna gain solutions in tabular form. The table
is organized as follows. Solutions are output by
1) Spectral window,
2) Antenna,
3) Time,
4) Channel,
5) and Polarization;
where the inner-most loop is over polarization.
The listcal output table contains two table headers. The top-level header
is printed each time the spectral window changes. This header lists
the spectral window ID (SpwID), the date of observation (Date),
the calibration table name (CalTable), and the measurement set name (MS name).
A lower-level header is printed when the the top-level header is printed,
when the antenna names change, and every `pagerows' of output.
The lower-level header columns are described here:
Column Name Description
----------- -----------
Ant Antenna name (contains sub-columns: Amp, Phs, F)
Time Visibility timestamp corresponding to gain solution
Field Field name
Chn Channel number
Amp Complex solution amplitude
Phs Complex solution phase
F Flag
Elements of the ``F'' column contain an `F' when the datum is flagged,
and ` ' (whitespace) when the datum is not flagged.
Presently, the polarization mode names (for example: R, L)
are not given, but the ordering of the polrization modes (left-to-right) is
equivalent to the order output by task listobs (see ``Feeds'' in listobs
output).
Input Parameters:
vis Name of input visibility file
default: none; example: vis='ngc5921.ms'
caltable Name of input calibration table
default: none; example: caltable='ngc5921.gcal'
field Select data based on field ID(s) or name(s)
default: ''==>all; example: field='1'
field='0~2' field ids inclusive from 0 to 2
field='3C*' all field names starting with 3C
field='3C*' all field names starting with 3C
antenna Select calibration data based on antenna name
default: ''-->all; example: antenna='5';
antenna='5,6' antenna index 5 and 6 solutions
antenna='VA05','VA06' VLA antenna 5 and 6
spw Select spectral window(s), channel(s) to list
default: '' --> All spws and channels;
spw='2:34' spectral window 2, channel 34;
spw='1:5,3~5:7~9' spectral window 1, channel
5 and spectral windows 3 thru 5, channels
7 thru 9.
listfile write output to disk; will not overwrite
default: '' --> write to screen
pagerows rows per page of listing
default: 50; 0 --> do not paginate
Example:
# Get path to CASA home dir
pathname=os.environ.get('CASAPATH').split()[0]
# Select uv-data (FITS) file
fitsdata=pathname+'/data/demo/NGC5921.fits'
# MS name; write to current directory
msdata='NGC5921.ms'
# import FITS data to MS
importuvfits(fitsfile=fitsdata, vis=msdata)
# Create model data for flux calibrator
setjy(vis=msdata)
# Calibration table name
caldata=msdata+'.bcal'
# Bandpass calibration
bandpass(vis=msdata, caltable=caldata)
# List a subset of calibration factors
listcal(vis=msdata, caltable=caldata, field='N5921_2, 0, 1',
antenna='1,2,5;10~14', spw='0:1,0:22~25', pagerows=0)
Example Output:
SpwID = 0, Date = 1995/04/13, CalTable = NGC5921.ms.bcal (B Jones), MS name = /users/jcrossle/NRAO/casa/NGC5921.ms
-------------------------------------------------------------------------------------------------------------------------------------------------------
| Ant = 1 | Ant = 2 | Ant = 5 | Ant = 10 |
Time Field Chn| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F|
----------|---------------|---|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|
09:21:46.0 1331+30500002_0 1|0.165 7.9 0.117 21.3 0.168 98.8 0.161 -116.8 0.146 -24.6 0.153 -109.7 0.163 -158.6 0.139 3.9
10:05:27.9 1445+09900002_0 1|0.260 10.3 0.185 20.0 0.266 102.3 0.250 -116.1 0.233 -20.4 0.245 -108.6 0.255 -156.5 0.217 4.1
10:09:05.3 N5921_2 1|0.047 54.2 0.030 50.7 0.057 -64.6 0.041 36.5 0.050 93.5 0.035 -13.9 0.079 97.5 0.048 -107.0
| Ant = 11 | Ant = 12 | Ant = 13 | Ant = 14 |
Time Field Chn| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F|
----------|---------------|---|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|
09:21:46.0 1331+30500002_0 1|0.156 -112.6 0.128 -5.5 0.156 -178.4 0.169 -146.2 0.160 -177.4 0.148 -89.1 0.173 -117.0 0.145 141.5
10:05:27.9 1445+09900002_0 1|0.243 -110.6 0.199 -5.7 0.251 -175.4 0.272 -146.9 0.249 -175.0 0.238 -89.5 0.268 -113.5 0.228 142.5
10:09:05.3 N5921_2 1|0.054 47.1 0.056 105.5 0.042 -84.9 0.043 -18.9 0.058 72.4 0.055 155.6 0.040 -35.0 0.044 -153.6
SpwID = 0, Date = 1995/04/13, CalTable = NGC5921.ms.bcal (B Jones), MS name = /users/jcrossle/NRAO/casa/NGC5921.ms
-------------------------------------------------------------------------------------------------------------------------------------------------------
| Ant = 1 | Ant = 2 | Ant = 5 | Ant = 10 |
Time Field Chn| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F|
----------|---------------|---|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|
09:21:46.0 1331+30500002_0 22|0.319 4.6 0.323 -6.8 0.311 109.6 0.315 -109.0 0.286 -26.8 0.324 -106.8 0.303 -146.6 0.303 4.3
09:21:46.0 1331+30500002_0 23|0.318 4.4 0.323 -6.8 0.309 109.7 0.315 -108.8 0.285 -26.8 0.325 -106.5 0.304 -146.2 0.304 4.6
09:21:46.0 1331+30500002_0 24|0.318 4.2 0.323 -6.6 0.309 109.8 0.316 -108.6 0.285 -26.8 0.324 -106.6 0.302 -146.1 0.304 5.0
09:21:46.0 1331+30500002_0 25|0.319 4.3 0.323 -6.6 0.308 109.5 0.315 -108.4 0.285 -26.7 0.323 -106.7 0.301 -145.9 0.303 5.1
10:05:27.9 1445+09900002_0 22|0.502 7.0 0.508 -7.9 0.483 112.2 0.499 -108.5 0.451 -24.2 0.515 -106.2 0.481 -144.1 0.489 4.6
10:05:27.9 1445+09900002_0 23|0.498 7.2 0.509 -8.2 0.489 112.6 0.502 -108.8 0.455 -23.9 0.513 -106.2 0.477 -144.0 0.480 5.0
10:05:27.9 1445+09900002_0 24|0.496 6.3 0.506 -7.1 0.487 111.9 0.502 -108.3 0.450 -23.8 0.517 -106.1 0.473 -144.6 0.478 4.0
10:05:27.9 1445+09900002_0 25|0.489 6.3 0.512 -8.2 0.483 113.0 0.498 -108.7 0.456 -24.3 0.507 -105.5 0.470 -144.4 0.476 4.3
10:09:05.3 N5921_2 22|0.089 53.9 0.084 38.8 0.135 -84.0 0.148 54.9 0.100 94.2 0.112 4.4 0.112 90.6 0.115 -124.0
10:09:05.3 N5921_2 23|0.068 50.4 0.073 31.5 0.117 -80.7 0.150 50.5 0.103 90.3 0.120 2.6 0.104 103.6 0.104 -121.5
10:09:05.3 N5921_2 24|0.068 51.4 0.080 45.1 0.125 -89.0 0.146 47.3 0.106 99.9 0.122 8.8 0.102 95.9 0.099 -121.4
10:09:05.3 N5921_2 25|0.060 45.8 0.060 42.5 0.124 -85.4 0.146 47.8 0.110 93.4 0.125 7.2 0.088 100.9 0.096 -115.9
| Ant = 11 | Ant = 12 | Ant = 13 | Ant = 14 |
Time Field Chn| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F| Amp Phs F Amp Phs F|
----------|---------------|---|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|
09:21:46.0 1331+30500002_0 22|0.302 -99.8 0.301 -10.5 0.341 169.8 0.350 -137.6 0.306 -167.6 0.308 -84.8 0.319 -103.6 0.316 143.7
09:21:46.0 1331+30500002_0 23|0.301 -99.9 0.302 -10.6 0.341 169.7 0.349 -138.0 0.306 -167.4 0.307 -84.5 0.318 -103.6 0.316 143.8
09:21:46.0 1331+30500002_0 24|0.300 -100.0 0.301 -10.9 0.342 169.6 0.348 -138.4 0.305 -167.4 0.306 -84.3 0.319 -103.4 0.317 143.4
09:21:46.0 1331+30500002_0 25|0.301 -100.1 0.300 -11.0 0.339 169.9 0.347 -138.5 0.305 -167.4 0.306 -84.0 0.317 -103.2 0.315 143.5
10:05:27.9 1445+09900002_0 22|0.478 -97.3 0.482 -9.7 0.535 171.3 0.544 -138.1 0.480 -165.1 0.487 -86.0 0.502 -100.2 0.503 144.6
10:05:27.9 1445+09900002_0 23|0.481 -97.4 0.479 -10.4 0.531 171.4 0.549 -138.9 0.483 -165.3 0.489 -84.3 0.498 -99.7 0.501 144.7
10:05:27.9 1445+09900002_0 24|0.482 -97.6 0.484 -10.1 0.532 172.7 0.544 -139.3 0.489 -165.3 0.476 -84.6 0.498 -100.3 0.502 144.6
10:05:27.9 1445+09900002_0 25|0.479 -98.4 0.484 -10.1 0.534 172.4 0.553 -139.0 0.481 -165.4 0.479 -84.3 0.498 -100.3 0.497 145.0
10:09:05.3 N5921_2 22|0.127 44.8 0.142 128.9 0.090 -94.4 0.090 -48.5 0.112 41.3 0.103 109.0 0.075 7.2 0.095 -120.1
10:09:05.3 N5921_2 23|0.135 43.1 0.132 126.0 0.087 -89.3 0.103 -38.2 0.112 39.3 0.100 117.8 0.076 -3.4 0.098 -113.5
10:09:05.3 N5921_2 24|0.135 49.4 0.137 136.1 0.092 -95.9 0.084 -42.7 0.104 49.9 0.120 117.6 0.087 2.9 0.097 -121.2
10:09:05.3 N5921_2 25|0.144 49.8 0.119 130.0 0.086 -96.5 0.074 -42.8 0.109 41.5 0.124 120.8 0.087 0.4 0.104 -117.3
Listed 120 antenna solutions.
