[daip] Problem reducing data from AK403

[Amy Mioduszewski]

Look at your SN table with SNPLT (or some such) to see if there are solutions 
for your sources.  I suspect that there is something wrong with 1328+307.

Amy

Melanie Gendre wrote:
> Hi,
> 
> I tried running vlacalib as followed:
> 
>> run vlaprocs
>> task 'vlacalib' ; default
>> getn 1
>> calcode '*'; refant 4
>> snver 1; doprint 0; minamp 10; minph 10; freqid 1
>> vlacal
> 
> Which doesn't give me any error message.
> I then flag my data with edita and then try to set the flux for the
> secondary calibrator with:
> 
>> task 'getjy' ; default
>> getn 1
>> sources '0923+392','1038+064','1406-076'
>> calsour '1328+307'
>> bif 1 ; eif 2 ; freqid 1; go
> 
> and I get the following message:
> localh> GETJY1: Task GETJY  (release of 31DEC07) begins
> localh> GETJY1: ERROR: NO VALID CALIBRATOR SOLUTIONS AND/OR FLUX DENSITIES
> FOUND
> localh> GETJY1: Purports to die of UNNATURAL causes
> localh> GETJY1: localhost    31DEC07 TST: Cpu=       0.0  Real=       0
> 
> 
> What is going wrong here?
> 
> Thank you
> Melanie
> 
> 
> 
> 
>> Hi Melanie,
>>
>> Sorry we were understaffed for a bit.  What version of AIPS are you using?
>>  I
>> don't think the FILLM messages have anything to do with it.  I revamped
>> VLACAL
>> recently so I am wondering if I introduced a bug.  If you have a recent
>> version
>> of AIPS try running VLACALIB with UVRANGE 0.  This will trigger the use of
>> a
>> model for your calibrator.
>>
>> Amy
>>
>> Melanie Gendre wrote:
>>> Hi,
>>>
>>> My name is Melanie and I am trying to get data reduced from the program
>>> AK403 in X band and I am having some trouble (I've reduced data for 9
>>> other programs without problems).
>>>
>>> I load the program in AIPS using fillm without problem, except the
>>> message:
>>> localh> FILLM1: Number bad nominal sensitivities: ant 12 IF 1 =
>>> 1
>>> localh> FILLM1: Number bad nominal sensitivities: ant 12 IF 2 =
>>> 1
>>>
>>> The summary of observation tells me that the primary calibrator is
>>> 1328+307.
>>> Looking at the antenna location, I chose antenna 4 as reference. Looking
>>> at the antenna with listr doesn't show any major problem.
>>>
>>> I set the flux of the primary using setjy, it works.
>>> Then, when I try to calibrate with vlacal, it dies.
>>>
>>> I enter:
>>>> run vlaprocs
>>>> task 'vlacalib' ; default
>>>> getn 1
>>>> calsour '1328+307'; uvrange 0 400; refant 4
>>>> calcode '*';snver 1; doprint 0
>>>> minamp 10; minph 10; freqid 1; vlacal
>>> and I get the following message:
>>> localh> CALIB1: CALIB USING AK403_UV     . X BAND .   1 DISK=  1
>>> USID=2403
>>> localh> CALIB1: Selecting and editing the data
>>> localh> CALIB1: Doing cal transfer mode with point model for each source
>>> localh> CALIB1: This is not self-calibration
>>> localh> CALIB1: Dividing data by source flux densities
>>> localh> CALIB1: Determining solutions using amp-scalar averaging
>>> localh> CALIB1: Writing SN table    1
>>> localh> CALIB1: RPOL, IF= 1 The average gain over these antennas is
>>> 0.000E+00
>>> localh> CALIB1: RPOL, IF= 2 The average gain over these antennas is
>>> 0.000E+00
>>> localh> CALIB1: LPOL, IF= 1 The average gain over these antennas is
>>> 0.000E+00
>>> localh> CALIB1: LPOL, IF= 2 The average gain over these antennas is
>>> 0.000E+00
>>> localh> CALIB1: ERROR: NO VALID SOLUTIONS FOUND
>>> localh> CALIB1: Purports to die of UNNATURAL causes
>>> localh> CALIB1: localhost    31DEC07 TST: Cpu=       0.1  Real=       1
>>>
>>>
>>> I tried changing 1328+307 by 1331+305 or 3C286, I tried changing the ref
>>> antenna, but nothing works.
>>>
>>> Any ideas?
>>>
>>> Thank you
>>> Melanie
>>>
> 
>