importfitsidi – Convert a FITS-IDI file to a CASA visibility data set – import/export task

Description

Convert a FITS-IDI file to a CASA visiblity data set. If several files are given, they will be concatenated into one MS.

Parameters

Title
Parameter	Default	Description
fitsidifile	`numpy.array( [ ] )`	Name(s) of input FITS-IDI file(s)
vis	`''`	Name of output visibility file
constobsid	`False`	If True, give constant obs ID==0 to the data from all input fitsidi files (False = separate obs id for each file)
scanreindexgap_s	`float(0.)`	Min time gap (seconds) between integrations to start a new scan
specframe	`'GEO'`	Spectral reference frame for all spectral windows in the output MS

Parameter Explanations

fitsidifile

numpy.array( [ ] )

Name(s) of input FITS-IDI file(s): Default: none (must be supplied)

Examples: fitsidifile=’3C273XC1.IDI’ fitsidifile=[‘3C273XC1.IDI1’,’3C273XC1.IDI2’]

vis

''

Name of output visibility file: Default: none

Example: outputvis=’3C273XC1.ms’

constobsid

False

If True, give constant obs ID==0 to the data from all input fitsidi files (False = separate obs id for each file)

Default: False (new obs id for each input file) Options: False|True

scanreindexgap_s

float(0.)

Min time gap (seconds) between integrations to start a new scan

Default: 0. (no reindexing)

If > 0., a new scan is started whenever the gap between two integrations is > the given value (seconds) or when a new field starts or when the ARRAY_ID changes.

specframe

'GEO'

This frame will be used to set the spectral reference frame for all spectral windows in the output MS

Default: GEO (geocentric) Options: GEO|TOPO|LSRK|BARY

NOTE: if specframe is set to TOPO, the reference location will be taken from the Observatories table in the CASA data repository for the given name of the observatory. You can edit that table and add new rows.