[daip] GETJY
John Keck
jwk at astro.columbia.edu
Mon Sep 11 16:00:23 EDT 2000
I was wondering if you might know what the cause of my problem is and how
I can correct it.
The problem is with GETJY on one of the several C-band observations I'm
calibrating. It gives a flux that's about 20 times too high:
boheme> GETJY1: 1748-253 : 0 C 1 11.20408 +/- 7.62896
boheme> GETJY1: 2 5.51208 +/- 3.54104
I'm pretty sure that I'm using the correct procedure because the flux of
the other phase calibrators of the observation aren't that far off:
boheme> GETJY1: 1923+210 : 0 A 1 1.38879 +/- 0.03630
boheme> GETJY1: 2 1.48411 +/- 0.04156
boheme> GETJY1: 2013+340 : 0 T 1 0.92656 +/- 0.01559
boheme> GETJY1: 2 0.92186 +/- 0.01529
The observing log (AM447, 94Feb17), says that a couple of the antennas
were having problems, and that there was some shadowing that corrupted the
data, so perhaps that is the cause. I can't seem to find anything in the
Cookbook about shadowing. What should I do to correct it?
Thanks,
John Keck
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