[daip] Missing scan in CL1? {External}

[Arnaud Collioud]

Hello Eric,


Indeed, when running FITLD > USUBA > INDXR, I see the CL entry for 
source 4 subarray 2!


What I use to do in my pipeline is:

FITLD > INDXR > ANTAB (to import tsys/gain for non-VLBA stations ; 
easier to deal there since there is only one subarray) > USUBA > INDXR 
(to get the subarray info correctly in CL/NX...)


I just tried FITLD > INDXR, and the CL entries for source 4 around 17:40 
are already gone.


Do you know why? Do you recommand to proceed with USUBA the earliest in 
the processing pipeline?


Cheers,

A.






Le 13/05/2025 à 17:14, Eric Greisen a écrit :
> I loaded RV158, ran USUBA, and then INDXR.    With CPARM(3)=0.15 and 
> CPARM(4)=1, INDXR made a CL table with 13127 rows including a great 
> many for source 4 subarray 2 in the time range 17:38:10 to
> 17:43:34.   In PRTAB INEXT='CL',rparm 3 1 4 0.1  5 1 2 0.1; should 
> show a lot in rows  986 - 1532.
>
> Cheers,
>
>
>
> ------------------------------------------------------------------------
> *From:* Daip <daip-bounces at listmgr.nrao.edu> on behalf of Arnaud 
> Collioud via Daip <daip at listmgr.nrao.edu>
> *Sent:* Monday, May 12, 2025 11:24 AM
> *To:* daip <daip at nrao.edu>
> *Subject:* [daip] Missing scan in CL1? {External}
>
> Hello Eric, Amy,
>
> I am analysing the global VLBI session RV158 (VLBA + 8 IVS antennas ; 
> 24h ; S/X-band ; available at NRAO data archive).
>
> I'm looking at the source 0403-132 (#4 in my data), which is in the 
> index as:
>
>        4  0/17:40:52.0  00:05:24.0       4         2 9992     14396
>
> (as you can see, I have subarrays in my dataset)
>
> For this scan, there is data (checked with VPLOT).
>
> However, this scan is NOT in CL1, which was created after loading the 
> data (FITLD) by runnig INDXR. CL1 was (normally?) updated after 
> running USUBA by running INDXR again.
>
> /How is that possible? Any clue why this scan is not in CL1?/
>
> Moreover, I am building SN1 from TY1/GC1, and I have gain amplitude 
> values for this scan. Is there a way to get this into CL2 (with 
> CLCAL)? Or since there is not row in CL1 for this scan, no hope to get 
> it in CL2?
>
> Thanks in advance for your help!
>
> Best wishes,
>
> Arnaud
>
>
>
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