[daip] Oddity in FLATN

[rlaing at eso.org]

I recently had occasion to run FLATN on images produced from a uv dataset
precessed to J2000 from B1950 using UVFIX. I noticed that the central pixel
coordinate was way off (no shift had been applied). I think this is because I
had COORDINA = 0 and FLATN took the observed RA and Dec, in B1950, and
interpreted it as if it were J2000. Work-around was to put the correct J2000
coordinates in manually via COORDINA.

Would it be possible for FLATN to precess the observed position in such cases?

Regards

Robert

-- 
Prof Robert Laing
European ALMA Instrument Scientist

European Southern Observatory
Karl-Schwarzschild-Strasse 2
D-85748 Garching-bei-Muenchen
Germany

Telephone (direct)     (+49) 89 3200 6625
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rlaing at eso.org