TGBT14A_912_64 - continue bank discrepancy problems
Start at 11:00am
Write a procedure Archivist to configure the archivist correctly.
Need to set up for KFPA, since the are working on the MUSTANG rotator
Can only use four banks; config_tool seems to chose E,F,G,H
Has configured with some blanking for some reason, but otherwise, all looks correct. Has balance ok.
Switch to mode 4 - still seems to have configured correctly.
now use Balance target levels and Balance() to iterate through input levels, allowing config_tool to choose values of lbw_gain.
first scan (at target -36dB) is scan 8
last scan (at target -14dB) is scan 18. Go to -10dB Takes around 20 minutes
What happened to scan 19?
configure for mode 7.
run checkLinearityBalance - failed with some VEGAS errors; try again
Same again; turn manager off and on again; still errors; Xdisplays hang up for a few minutes...
Finally get started on mode 7; scan 23 <=== forgot to change mode number....
for the higher input level, e.g. -10dB, the filtersnap measpwr has gone up, but the histograms still look lousy
running out of time, so concentrate more on the high end of the target range,
37, VEGAS mode 9, initial target -30dB
looks like they may be extending the boom???? Scan 38 screwed up. Next one might be ok. No, they are moving telescope in elevation...
input power is changing by about 2dB during a scan; maybe need to use a subset of the data.
Scan 49 has target level -6dB
Switch to mode 11 - note they are now slewing the telescope back to access. But I can't wait for them to finish...
Green channel (pol 1) is much less sensitive to slewing than red channel (pol 2)
run checkLinearityBalance again: mode 11, scan 50 to start at -30dB
mode 24 - Bank G gets stuck in activating, recovers on next attempt, then fails again. Restart.
mode 24, scan 62, target - 30dB
Finish at 4:10pm
This topic: CICADA
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