Sheila, Nutsinee
Today we took some time to map out CLF angle vs. sqz/asqz in detail. We also tried to measured phase noise at 45deg but at a quick glance we didn't seem to observe any phase noise. We didn't get to the asqz/sqz measurement at two different nlg (measurement 3). These are the list of time for reference.
#Measurement #1
SQZ angle rotation: this is where we moved CLF phase delay ~3 deg at a time until the end of the slide bar.
start time 17:32:40 UTC
stop time 18:07:53 UTC
CLF sign flipped 18:12:02 UTC, and the angle rotation repeated, this time we moved ~6 deg at a time.
start time 18:12:52 UTC
stop time 18:33:00 UTC
Measurement #2
45 deg phase noise measurement
start time 19:00:35 UTC
stop time 19:34:12 UTC
Best SQZ time
start 19:35:37 UTC
stop 19:55:37 UTC
During measurement #2 the low pass of OAF BLRMS 7 and SQZ BLRMS were modified so that the pole was at 100Hz. The change has been reverted.
During the phase mapping we also found that we weren't operating at the optimal CLF phase. We moved it to the good place (~150deg) and gained 2-3 Mpc from that.