[daip] Adding image units

[Eric Greisen]

rmittal at astro.rit.edu wrote:
> Dear AIPS HelpDesk,
> 
> I'm wondering if there's a way of adding image units inside AIPS to an 
> imported FITS file? The image in question has Jy/beam as the units. I 
> have added the beam using 'ADDBEAM'. Next I'd like to integrate flux. 
> 'IMSTAT' doesn't give any flux density and my guess is that it's because 
> it wasn't able to retrieve that information from the FITS file even 
> though the FITS file does have an entry --> [META_5  = 'Jy/beam 
> '           / Unit of the signal].
> 
>  >imh
> AIPS 1: Image=Abell 25  (MA)         Filename=A2597_PSW   .image .   1
> AIPS 1: Telescope=Herschel           Receiver=SPIRE
> AIPS 1: Observer=aedge               User #= 4129
> AIPS 1: Observ. date=30-NOV-2009     Map date=16-MAR-2010
> AIPS 1: Pixel type: FLOATING         Magic value blanking
> AIPS 1: Minimum=-8.46254826E-02      Maximum= 2.20773414E-01
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: Type    Pixels   Coord value     at Pixel     Coord incr   Rotat
> AIPS 1: RA---TAN   218    23 25 19.820     109.00         -6.000    0.00
> AIPS 1: DEC--TAN   238   -12 07 26.400     119.00          6.000    0.00
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: Coordinate equinox 2000.00
> AIPS 1: Map type=DIRTY               Number of iterations=       0
> AIPS 1: Conv size=  18.00 X  18.00   Position angle=   0.00
> AIPS 1: Maximum version number of extension files of type HI is   1
> 
> Is there a quick and easy solution to this? Thanks in advance.

IMEAN seems to check the number of iterations - change it to 1.  The 
image type could be changed too.  Use PUTHEAD with KEYWORD 'NITER' AND 
VKEYVAL = 1,0 for iterations and KEYWORD 'PRODUCT' also with value 1 for 
the type of image.  Then IMEAN should be happy.

Cheers,

Eric Greisen


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