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| == Help on importvla task: ==
| | {{importvla}} |
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| Import VLA archive file(s) to a measurement set
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| Imports an arbitrary number of VLA archive-format data sets into
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| a casa measurement set. If more than one band is present, they
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| will be put in the same measurement set but in a separate spectral
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| window. The task will handle old style and new style VLA (after
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| July 2007) archive data and apply the tsys to the data and to
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| the weights.
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| Keyword arguments:
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| archivefiles -- Name of input VLA archive file(s)
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| default: none. Must be supplied
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| example: archivefiles = 'AP314_A959519.xp1'
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| example: archivefiles=['AP314_A950519.xp1','AP314_A950519.xp2']
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| vis -- Name of output visibility file
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| default: none. Must be supplied.
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| example: vis='NGC7538.ms'
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| Will not over-write existing ms of same name.
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| A backup flag-file version 'Original' will be made in
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| vis.flagversions. See help flagmanager
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| bandname -- VLA Frequency band
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| default: => '' = all bands
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| example: bandname='K'
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| Options: '4'=48-96 MHz,'P'=298-345 MHz,'L'=1.15-1.75 GHz,
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| 'C'=4.2-5.1 GHz,'X'=6.8-9.6 GHz,'U'=13.5-16.3 GHz,
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| 'K'=20.8-25.8 GHz,'Q'=38-51 GHz
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| frequencytol -- Tolerance in frequency shift in making spectral windows
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| default: => 150000 (Hz). For Doppler shifted data, <10000 Hz may
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| may produce too many unnecessary spectral windows.
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| example: frequencytol = 1500000.0 (units = Hz)
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| project -- Project name to import from archive files:
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| default: '' => all projects in file
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| example: project='AL519'
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| project = 'al519' or AL519 will work. Do not include
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| leading zeros; project = 'AL0519' will not work.
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| starttime -- Time after which data will be considered for importing
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| default: '' => all: Date must be included.
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| syntax: starttime = '2003/1/31/05:05:23'
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| stoptime -- Time before which data will be considered for importing
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| default: '' => all: Date must be included.
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| syntax: stoptime = '2003/1/31/08:05:23'
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| applytsys -- Apply data scaling and weight scaling by nominal
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| sensitivity (~Tsys)
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| default: True. Strongly recommended
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| autocorr -- import autocorrelations to ms
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| default: => False (no autocorrelations)
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| antnamescheme -- 'old' or 'new' antenna names.
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| default => 'new' gives antnenna names
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| 'VA04' or 'EA13 for VLA telescopse 04 and 13 (EVLA)
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| 'old' gives names '04' or '13'
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| keepblanks -- Should sources with blank names be filled into the data base
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| default => false. Do not fill
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| These scans are tipping scans (as of June 1, 2009) and should not
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| be filled in the visibility data set.
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| evlabands -- Use the EVLA's center frequency and bandwidths for frequencies
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| specified via wavelength or band.
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| default => True.
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| async -- Run asynchronously
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| default = False; do not run asychronously
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