[daip] Problem with loading EVLA data into AIPS with BDF2AIPS... (fwd)
Nissim Kanekar
nkanekar at ncra.tifr.res.in
Wed May 15 17:57:56 EDT 2013
On Wed, 15 May 2013, Eric Greisen wrote:
> Nissim Kanekar wrote:
>>
>> Dear Eric,
>>
>> We've been having some weird problems with mails today, so I wasn't sure
>> whether a mail that I sent to you earlier today got through and thought I
>> should forward it again (below). Apologies if you got the earlier one!
>>
>> Cheers,
>> Nissim
>>
>>
>>
>> ---------- Forwarded message ----------
>> Date: Wed, 15 May 2013 20:14:31 +0530 (IST)
>> From: Nissim Kanekar <nkanekar at ncra.tifr.res.in>
>> To: egreisen at nrao.edu
>> Subject: Problem with loading EVLA data into AIPS with BDF2AIPS...
>>
>>
>> Dear Eric,
>>
>> I've run into a bit of a strange problem with loading some recent EVLA data
>> into AIPS with BDF2AIPS in 31DEC13. The task seems to run fine and produces
>> an output file with the correct tables and the correct source information;
>> however, the number of visibilities in each scan is shown by LISTR to be
>> zero (see the attached file, with the LISTR output). Was wondering if I'm
>> doing something obviously wrong here; could you let me know ?
>>
>> Thanks!
>> Nissim
>>
>
>
> I did not get your earlier e-mail.
>
> Check your adverbs to LISTR - a number of them apply to the SCAN listing when
> you would think that they would not (SOURCE among others).
>
> Try PRTAB on the NX file (DOCRT=1).
>
> Eric
>
Hi Eric,
I tried the same LISTR inputs (inext 'SU', opty 'SCAN', source '') on other
EVLA dataset and they do list the right number of visibilities, so I suspect
that this should be fine.
I also tried PRTAB on the NX file with DOCRT=1 and got blank output:
socrates PRTAB(31DEC12) 187 16-MAY-2013 03:16:49 Page 1
BDF2AIPS .UVEVLA. 1 Disk= 1 NX Table version 1
Title: AIPS NX
Created by BDFIn on 15-MAY-2013 18:35:03
Last written by BDFIn on 15-MAY-2013 18:35:03
Ncol 7 Nrow 0 Sort cols:
Table format incompatable with FITS ASCII tables
COL. NO. 1 2 3 4 5 6
7
ROW TIME TIME INTER SOURCE ID SUBARRAY START VIS
END VIS FREQ ID NUMBER D/HMS D/HMS
I think I've found the cause of the problem though. There's overlap between the
frequencies of the AC and BD IFs, so ORDER needs to be set to <= 0, while it was
set to the default of 1. Have changed this now and BDF2AIPS is now running much
slower (suggesting that it's actually doing something!) and the log file
indicates that individual scans are being written. So I think it's all fine now.
Sorry for not checking more carefully before writing to you! The information is
all there in the help file to BDF2AIPS, but perhaps there could be more emphasis
on setting ORDER correctly.
As ever, many thanks!
Cheers,
Nissim
-------------- next part --------------
#AIPS: Runfile for ObitTalk created 15-MAY-2013.18:32:58
user=187
from OTObit import *
AIPS.AIPS.userno=user
OSystem.PSetAIPSuser (user)
err=OErr.OErr()
x=ObitTask("BDFIn")
x.DataRoot="/data/nkanekar/AIPS_DATA/EVLA0334"
x.DataType="AIPS"
x.outName="BDF2AIPS"
x.outClass="UVEVLA"
x.outDisk=1
x.calInt=0.250000
x.selChan=0
x.selIF=0
x.SWOrder=False
x.selBand=""
x.selCode=""
x.selConfig=0
x.Compress=False
x.doCode=True
x.doSwPwr=False
x.taskLog="/home/nkanekar/BDF2AIPS.log.15MAY2013.183258"
x.g
ObitTalk /home/nkanekar/BDF2AIPS.run.15MAY2013.183258 >> /home/nkanekar/BDF2AIPS.log.15MAY2013.183258 &
Using DADEVS.SH
BDFIn: info 20130515T183259 BDFIn Begins, svn ver. 449
BDFIn: info 20130515T183259 BDFIn Begins, svn ver. 449
BDFIn: info 20130515T183259 Date/Time: 2013-05-15 18:32:59
BDFIn: info 20130515T183259 Date/Time: 2013-05-15 18:32:59
BDFIn: info 20130515T183259 Making output AIPS UV data BDF2AIPS UVEVLA 1 on disk 1 cno 1
BDFIn: info 20130515T183259 Making output AIPS UV data BDF2AIPS UVEVLA 1 on disk 1 cno 1
BDFIn: info 20130515T183259 Selecting scans with ConfigID 0
BDFIn: info 20130515T183259 Selecting scans with ConfigID 0
BDFIn: info 20130515T183259 Selecting Ka band
BDFIn: info 20130515T183259 Selecting Ka band
BDFIn: info 20130515T183259 Selecting scans with 12 Spectral Windows
BDFIn: info 20130515T183259 Selecting scans with 12 Spectral Windows
BDFIn: info 20130515T183259 Selecting spectral windows with 128 channels
BDFIn: info 20130515T183259 Selecting spectral windows with 128 channels
BDFIn: info 20130515T183259 Selecting calCode ' '
BDFIn: info 20130515T183259 Selecting calCode ' '
BDFIn: info 20130515T183259 Selecting 8 spectral windows (IFs)
BDFIn: info 20130515T183259 Selecting 8 spectral windows (IFs)
BDFIn: Error 20130515T183259 GetData: Frequencies inconsistent 37062000000.000000 != 37190000000.000000, IF 1
BDFIn: Error 20130515T183259 GetData: Frequencies inconsistent 37062000000.000000 != 37190000000.000000, IF 1
BDFIn: Error 20130515T183259 Occured at file BDFIn.c: line 2109 (GetData)
BDFIn: Error 20130515T183259 Occured at file BDFIn.c: line 2109 (GetData)
BDFIn: info 20130515T183259 Copied calDevice table 28 rows
BDFIn: info 20130515T183259 Copied calDevice table 28 rows
BDFIn: info 20130515T183300 Copied SysPower table 137834 rows
BDFIn: info 20130515T183300 Copied SysPower table 137834 rows
BDFIn: info 20130515T183300 Copied OT table
BDFIn: info 20130515T183300 Copied OT table
BDFIn: info 20130515T183300 Generated GC table 1
BDFIn: info 20130515T183300 Generated GC table 1
BDFIn: info 20130515T183300 Extending online flags by 1.5 sec. on each end
BDFIn: info 20130515T183300 Extending online flags by 1.5 sec. on each end
BDFIn: info 20130515T183300 Copied 1229 flag records
BDFIn: info 20130515T183300 Copied 1229 flag records
BDFIn: info 20130515T183300 Copied WEATHER table
BDFIn: info 20130515T183300 Copied WEATHER table
BDFIn: info 20130515T183300 Flagged 2 online cal only scans
BDFIn: info 20130515T183300 Flagged 2 online cal only scans
BDFIn: info 20130515T183300 Creating CL Table
BDFIn: info 20130515T183300 Creating CL Table
BDFIn: info 20130515T183300 BDFIn Ends, svn ver. 449
BDFIn: info 20130515T183300 BDFIn Ends, svn ver. 449
BDFIn: info 20130515T183300 Date/Time: 2013-05-15 18:33:00
BDFIn: info 20130515T183300 Date/Time: 2013-05-15 18:33:00
BDFIn: info 20130515T183300 BDFIn Runtime = 1 sec. CPU usage = 0.928 sec.
BDFIn: info 20130515T183300 BDFIn Runtime = 1 sec. CPU usage = 0.928 sec.
Obit: info 20130515T183259 ObitPython Begins, svn ver. 449
Obit: info 20130515T183259 ObitPython Begins, svn ver. 449
Obit: info 20130515T183259 Date/Time: 2013-05-15 18:32:59
Obit: info 20130515T183259 Date/Time: 2013-05-15 18:32:59
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