0.1.21 fringecal
Requires:
Synopsis Calculate a baseline-based fringe-fitting solution (phase, delay,
delay-rate)
Description
Arguments
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| Inputs | |
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| vis | | Nome of input visibility file
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| | | allowed: | string |
| | | Default: | |
| caltable | | Name of output gain calibration table
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| | | allowed: | string |
| | | Default: | |
| field | | Select field using field id(s) or field name(s)
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| | | allowed: | string |
| | | Default: | |
| spw | | Select spectral window/channels
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| | | allowed: | string |
| | | Default: | |
| selectdata | | Other data selection parameters
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| | | allowed: | bool |
| | | Default: | True |
| timerange | | Select data based on time range
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| | | allowed: | string |
| | | Default: | |
| uvrange | | Select data within uvrange (default units meters)
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| | | allowed: | any |
| | | Default: | variant |
| antenna | | Select data based on antenna/baseline
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| | | allowed: | string |
| | | Default: | |
| scan | | Scan number range
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| | | allowed: | string |
| | | Default: | |
| msselect | | Optional complex data selection (ignore for now)
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| | | allowed: | string |
| | | Default: | |
| gaincurve | | Apply internal VLA antenna gain curve correction
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| | | allowed: | bool |
| | | Default: | False |
| opacity | | Opacity correction to apply (nepers)
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| | | allowed: | double |
| | | Default: | 0.0 |
| solint | | Solution interval
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| | | allowed: | double |
| | | Default: | 0.0 |
| refant | | Reference antenna name
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| | | allowed: | string |
| | | Default: | |
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Example
This task determines a baseline by baseline fringe solutions; that is it
determines the phase, phase rate and delay for each specified solution
interval and baseline pair. At present there is no antenna-based fringe
fitter in casa (June 2009) which would supercede this task.
Keyword arguments:
vis -- Name of input visibility file
default: <unset>; example: vis=’ngc5921.ms’
caltable -- Name of output Gain calibration table
default: <unset>; example: caltable=’ngc5921.gcal’
--- Data Selection (see help par.selectdata for more detailed information)
field -- Select field using field id(s) or field name(s).
[run listobs to obtain the list id’s or names]
default: ’’=all fields
If field string is a non-negative integer, it is assumed a field index
otherwise, it is assumed a field name
field=’0~2’; field ids 0,1,2
field=’0,4,5~7’; field ids 0,4,5,6,7
field=’3C286,3C295’; field named 3C286 adn 3C295
field = ’3,4C*’; field id 3, all names starting with 4C
spw -- Select spectral window/channels
default: ’’=all spectral windows and channels
spw=’0~2,4’; spectral windows 0,1,2,4 (all channels)
spw=’<2’; spectral windows less than 2 (i.e. 0,1)
spw=’0:5~61’; spw 0, channels 5 to 61
spw=’0,10,3:3~45’; spw 0,10 all channels, spw 3, channels 3 to 45.
spw=’0~2:2~6’; spw 0,1,2 with channels 2 through 6 in each.
spw=’0:0~10;15~60’; spectral window 0 with channels 0-10,15-60
spw=’0:0~10,1:20~30,2:1;2;3’; spw 0, channels 0-10,
spw 1, channels 20-30, and spw 2, channels, 1,2 and 3
selectdata -- Other data selection parameters
default: True
timerange -- Select data based on time range:
default = ’’ (all); examples,
timerange = ’YYYY/MM/DD/hh:mm:ss~YYYY/MM/DD/hh:mm:ss’
Note: if YYYY/MM/DD is missing dat defaults to first day in data set
timerange=’09:14:0~09:54:0’ picks 40 min on first day
timerange= ’25:00:00~27:30:00’ picks 1 hr to 3 hr 30min on next day
timerange=’09:44:00’ data within one integration of time
timerange=’>10:24:00’ data after this time
uvrange -- Select data within uvrange (default units kilo-lambda)
default: ’’ (all); example:
uvrange=’0~1000kl’; uvrange from 0-1000 kilo-lamgda
uvrange=’>4kl’;uvranges greater than 4 kilo lambda
uvrange=’0~1000km’; uvrange in kilometers
antenna -- Select data based on antenna/baseline
default: ’’ (all)
If antenna string is a non-negative integer, it is assumed an antenna index
otherwise, it is assumed as an antenna name
antenna=’5&6’; baseline between antenna index 5 and index 6.
antenna=’VA05&VA06’; baseline between VLA antenna 5 and 6.
antenna=’5&6;7&8’; baseline 5-6 and 7-8
antenna=’5’; all baselines with antenna 5
antenna=’5,6,10’; all baselines with antennas 5 and 6
scan -- Scan number range - New, under developement
msselect -- Optional complex data selection (ignore for now)
gaincurve -- Apply VLA antenna gain curve correction (True/False)
default: False;
Use gaincurve=True ONLY for VLA data
opacity -- Opacity correction to apply (nepers)
default: 0.0 (no opacity correction)
example: opacity=0.051
solint -- Solution interval (sec)
default: 0; example: solint=60.0
Cannot be a string.
refant -- Reference antenna *name*
default: ’’ (none); example: refant=’13’
Please send any comments or questions about CASA or AIPS++
to aips2-requests@nrao.edu
Copyright © 2008 Associated Universities Inc.,
Washington, D.C.
This code is available under the terms of the GNU General Public Lincense
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Updated daily during alpha development.