[evlatests] Flagging/moving from P to C bands ...
Rick Perley
rperley at nrao.edu
Mon Jul 2 22:00:40 EDT 2007
My file observed 3c147 at P-band, then moved to a different source
for the C-band observation. JObserve reported that this move should
take 3min, 24 seconds. But in fact, it took nearly 6 minutes for good
C-band data to appear. This is for most of the antennas -- some took
a few seconds longer.
For those who distrust JObserve, here are the beginning and ending
azimuths and elevations:
Start AZ: 312
End Az: 191
Start El: 29
End El: 56.
The slew time will be set by the azimuth move -- 120 degrees, which
at 40 deg/min should take 3 minutes.
So -- what were the antennas doing for that extra 2.5 minutes? The
unflagged data shows nothing but noise...
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