Content-Length: 2667 | pFad | https://download.hao.ucar.edu/d5/mlso/log/observer/2001/mlso.2001d261.olog
----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Tue Sep 18 16:35:16 GMT 2001 Year: 01 Doy: 261 Observer: yasukawa WEATHER COMMENT: Tue Sep 18 16:35:39 GMT 2001 Cool, in thick cirrus overcast, south wind. COMMENT: Tue Sep 18 16:36:33 GMT 2001 Will take advantage of weather to work on O1 guider static problem. A NEW TAPE HAS BEEN PUT INTO KAIEE DLT DRIVE, Tue Sep 18 16:42:09 GMT 2001 COMMENT: Tue Sep 18 18:07:05 GMT 2001 Removed O1 guider logic power supply, Lambda LNS-P-5-OV, and removed the overvoltage protection circuit, IC-2 and C5, thought to be causing the power supply to shut down until reset by cycling power whenever there is a static discharge anywhere on the OCP rack. Reinstalled modified power supply and adjusted output to 4.99 VDC. Tue Sep 18 18:11:54 GMT 2001 CHIP Start Patrol Tue Sep 18 18:12:13 GMT 2001 PICS Start Patrol WEATHER COMMENT: Tue Sep 18 18:12:03 GMT 2001 Cirrus overcast is thinning. Starting up PICS and CHIP. GONG COMMENT: Tue Sep 18 18:30:44 GMT 2001 Going down to GONG to do weekly PM. GONG COMMENT: Tue Sep 18 18:57:06 GMT 2001 Back from GONG. Tue Sep 18 19:01:57 GMT 2001 CHIP LSD COMMENT: Tue Sep 18 19:02:31 GMT 2001 Just created a moderate static discharge against the OCP rack and the O1 guider did NOT shut down. Tue Sep 18 19:04:11 GMT 2001 CHIP End LSD Tue Sep 18 19:04:17 GMT 2001 CHIP BiasLSD Tue Sep 18 19:04:57 GMT 2001 CHIP End BiasLSD Tue Sep 18 19:05:03 GMT 2001 CHIP Bias Tue Sep 18 19:05:43 GMT 2001 CHIP End Bias COMMENT: Tue Sep 18 19:07:59 GMT 2001 Another static zap to the OCP rack did not take the O1 guider power supply down. COMMENT: Tue Sep 18 19:23:14 GMT 2001 Reconfigured dome shutter. Tue Sep 18 20:01:11 GMT 2001 CHIP LSD Tue Sep 18 20:03:22 GMT 2001 CHIP End LSD Tue Sep 18 20:03:29 GMT 2001 CHIP BiasLSD Tue Sep 18 20:04:09 GMT 2001 CHIP End BiasLSD Tue Sep 18 20:04:15 GMT 2001 CHIP Bias Tue Sep 18 20:04:55 GMT 2001 CHIP End Bias COMMENT: Tue Sep 18 20:34:11 GMT 2001 Big spark did not hose the O1 guider. I think the modification fixed the static problem. Tue Sep 18 21:01:02 GMT 2001 CHIP LSD Tue Sep 18 21:03:14 GMT 2001 CHIP End LSD Tue Sep 18 21:03:20 GMT 2001 CHIP BiasLSD Tue Sep 18 21:04:00 GMT 2001 CHIP End BiasLSD Tue Sep 18 21:04:06 GMT 2001 CHIP Bias Tue Sep 18 21:04:46 GMT 2001 CHIP End Bias Tue Sep 18 21:54:13 GMT 2001 CHIP End Patrol Tue Sep 18 21:56:41 GMT 2001 PICS End Patrol WEATHER COMMENT: Tue Sep 18 21:56:41 GMT 2001 In orographic clouds. Tue Sep 18 21:57:45 GMT 2001 MkIVFetched URL: https://download.hao.ucar.edu/d5/mlso/log/observer/2001/mlso.2001d261.olog
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