[evlatests] C and X band tests today
Brigette Hesman
bhesman at nrao.edu
Wed Oct 24 19:56:00 EDT 2007
As Rick mentioned I am reporting on the C and X band tests.
Generally the system is working well. I only have a few things to
mention.
General notes: 1 is in the barn so was out for the entire run, all
data were loaded with the correlation coefficients
C-band
A&C
14, 25 out
14's data is fine when loaded without the flags
24 comes in late
4 and 12 had dropouts
B&D
25 out
24 comes in late
15D has "chirps" in the data - states of extremely high correlation
coefficients
4 and 12 had dropouts
Sensitivities
EVLA sensitivities ~20% better than VLA
11A has 25% too high correlation coefficients
4AC,12AC has 30% too high correlation coefficients
Phase jumps
NONE
X-band
A&C
14 out but data are good when unflagged data loaded
24 takes a while to come online
25 comes online mid-way through observations
B&D
24 takes a while to come online
25 comes online mid-way through observations
15D has "chirps" in the data - states of extremely high correlation
coefficients
Sensitivities
EVLA and VLA sensitivities approximately equivalent
11ABCD has ~15% too high correlation coefficients
14D has ~30% too high correlation coefficients
15CD has ~10% too high correlation coefficients
25ABCD has ~15% too high correlation coefficients
Phase jumps
NONE
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