[daip] AIPS software help {External}

[egreisen]

On 2022-12-07 02:33, Tatyana Koryukova via Daip wrote:

AVSPC has the adverb DOACOR.  That has to be set to 1 or the 
autorcorrelation
data will be omitted from the output.  ACCOR requires the 
autocorrelation
data.

Eric Greisen



> Dear Madam/Sir,
> 
> I had a problem while working with VLBA experiment BH222E in aips.
> This experiment has a high spectral sensitivity. It was decided to
> average the spectral channels 8 times in the new catalog using the
> avspc task after loading the data into aips. Next, I tried to use
> vlbaccor procedure but it didn't not work.
> 
>> run vlbautil
>> inp vlbaload; DATAIN  'FITS:bh222e.fits
>> OUTNAME 'bh222e'; vlbaload; recat
> 
>> task 'avspc';  getn 1; outseq 1; docal 2; flagver 0; gainuse 0;
>> timerang 0, bif 0; eif 0; stokes '';
>> avoption 'SUBS'; channel 8;
>> runwait('avspc');
> 
>> REFANT  = antnum('LA')
> 
>> getn 2; vlbatecr; end   --> have ended successfully
>> getn 2; vlbapang; end  --> have ended successfully
>> getn 2; vlbaccor; end --> ERROR!
> 
> The following was written in the messenger:
> ACCOR1: Task ACCOR (release of 31DEC21) begins
> ACCOR1: Writing to SN table 1
> ACCOR1: UVGET: doing no flagging this time
> ACCOR1: Not calibrating gains bandpass polarization
> ACCOR1: ACRCOR: NO VALID AC DATA FOUND
> ACCOR1: ACRCOR: DELETED SN VERSION 1 DUE TO ERROR
> ACCOR1: Purports to die of UNNATURAL causes
> 
> I tried to use indxr, but it didn't help. Could you please help me to
> realise what I have done wrong?
> 
> I appreciate your help,
> Best regards, Tatiana.
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