[evlatests] AM889 on July 17

[Ed Fomalont]

AM889 on July 17

1.4 GHz, 2 IFs, 2 Pols: usual deep field correlator setup,
5 hour experiment

antennas:
    11, 25 out; 26 antennas working, 2 IFs, 2 Pols

flags:
    First scan bad, a little junk at end of last scan
    A few other outliers, but very clean data

Amplitude stability:
    All antennas/IF/pols with expected sensitivity
    Gain of ante 19 about a factor 2.5 too low all IFs/pols.
    Probably a simple on-line gain factor.

Phase stability:
    Little atmospheric/ionospheric variation.
    ante 14 had unexpected large phase gradient over a two minute
       scan near the beginning (same for all IF's, pols).  Probably part
       of an initialization problem in the beginning of most programs.
    No differences between EVLA-VLA IF phases (flukes were behaving?)

Imaging:

    Ran UVFIX

    Quick image shows no unexpected problems.  I'll let Neal do the imaging
properly.

PS: Neal, if you want any information (ie the few flags I used) about this
data set, let me know.

Ed