[daip] Analysing SMA data in AIPS ?

Nissim Kanekar nkanekar at ncra.tifr.res.in
Fri Jan 2 12:46:09 EST 2015


Hi Eric,

Many thanks indeed!

>> 
>> I'm trying to use AIPS to analyse some data from the sub-millimetre
>> array, aiming to do self-calibration in AIPS and then convert to the
>> heliocentric frame, before making spectral cubes. However, when I run
>> INDXR to generate an NX table, I get the following error (an NX table is
>> produced, incidentally):
>> 
>> ANREFM: NO ANTENNA OR ARRAY RECOGNIZED
>> 
>> I was wondering whether SMA data isn't recognized by AIPS and if there's
>> a way of getting it to work; could you let me know ? I've attached the
>> AN table that was attached to the data to this mail.
>
> The table you have attached in really rather a mess - did it come from the 
> SMA or did you write it back out from AIPS?  If the latter, is there some way 
> you could get me the original SMA data file?
>
>
> The coordinates of the antennas are all (X,Y,Z and all antennas) = 29 meters 
> - not possibly correct.  The ANREFM message will be annoying but it causes 
> nothing bad to happen.  It means that array = 'SMA' is not in the code.  It 
> would put it in if I thought that would help but the antenna positions are so 
> bad that there is no point.
>
>

I wrote the table out from AIPS; it didn't come from the SMA. I'll ask the SMA 
folks if they can send me the original file and will get back as soon as 
possible.

Thanks!

Best wishes,
Nissim




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