cheryl.vorvick@LIGO.ORG - posted 16:06, Saturday 09 January 2016 - last comment - 20:39, Saturday 09 January 2016(24815)
PCALX Line Moved to 3001.3 [Hz]
PCALX line moved from 1001.3 to 3001.3Hz at 23:59:53UTC (intention bit commissioning).
H1 back in Observe at 00:02:15UTC.
Screenshot of SDF attached.
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This means that the 1001.3 [Hz] line was on from 22:38:27 UTC to 23:59:53 UTC. No appreciable RF45 noise during this data stretch. I attach the usual screenshot demonstrating the amplitude and absense of any other features around the 3001.3 [Hz] line. We'll leave the 3 [kHz] line on for about 4 hours, as per Rick's schedule. Also for future reference, I've checked 3.5 and 4.5 [kHz], and they're also featureless, so no need to worry about injecting their later (see second and third attachment). The next scheduled change (if the IFO is kind enough to stay locked) is at ~8:30 PDT (~4:30 UTC), and I've instructed Cheryl to make the change.
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This configuration, cal ine at 3501.3Hz, should run for 6 hours.
After the data at this frquency is collected, the last configuration is the cal line at 4501.3 Hz, which needs to run for 12 hours.