[daip] Spaces in a source name.

Eric Greisen egreisen at nrao.edu
Thu Dec 11 10:56:50 EST 2008


marcel clemens wrote:
> Dear NRAO astronomer,
> 
> I am trying to run 'split' on a multi-source file from the GMRT.
> For some sources I get the (familiar) message:
> 
> ALL SOURCES REJECTED BY SELECTION CRITERIA.
> 
> This only happens for some sources in the dataset. The sources that give 
> problems seem to have names that contain spaces. 
> 
> LISTR output for example:
> 
>    1 0321+123        : 0000         03:21:53.1066  12:21:14.025   16095
>    2 UGC2369            : 0000         02:54:01.8166  14:58:14.529   47415
>    3 3C147             : 0000         05:42:36.1330  49:51:07.165   24360
>    4 0909+428        : 0000         09:09:33.5078  42:53:46.471   59595
> 
> You see, UGC2369 seems to have spaces in the name.
> 
> However, spaces seem to get ignored when I enter source name in SPLIT:
> 
> sources 'UGC2369  '  becomes sources 'UGC2369'
> 
> What is the best way around this problem?

I do not see spaces in the names other than trailing blanks which do not 
count anywhere in AIPS.  The formating of your LISTR bit above is 
curious and makes me wonder if there are unprintable characters (e.g. 
tabs) in the source names.  There is no way that you can enter that with 
POPS and it should be illegal (it is at the VLA and VLBA).

You could use TABPUT in the SU table to force the names to be what you 
expect.  Of course, you could also run SPLIT with SOURCES blank which 
will do all sources.

Of course, the ALL SOURCES REJECTED message comes about for a great many 
reasons.  Try UVPRT with SOURCE specified but all calibration turned 
off.  Do you get anything?  If so, try turning the cal adverbs on to see 
if you still get anything.  If not, then there is something odd about 
the strings now stored in the SU table.

Eric Greisen




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