----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Wed Jun 22 16:26:58 GMT 2005 Year: 05 Doy: 173 Observer: yasukawa WEATHER COMMENT: Wed Jun 22 16:27:20 GMT 2005 In moderate cirrostratus overcast, high cloud bank to east, S wind 11 mph, temp 40 F, RH 85%. ___end___ Wed Jun 22 16:34:58 GMT 2005 CHIP Start Patrol Wed Jun 22 16:35:09 GMT 2005 PICS Start Patrol PSPT COMMENT: Wed Jun 22 16:45:10 GMT 2005 Starting up ___end___ PSPT COMMENT: Wed Jun 22 16:53:39 GMT 2005 Observing. ___end___ Wed Jun 22 17:47:47 GMT 2005 CHIP End Patrol WEATHER COMMENT: Wed Jun 22 17:47:14 GMT 2005 mist blowing over station from cloud bank to east and south. Closing domes. Idling observations. ___end___ Wed Jun 22 17:48:18 GMT 2005 PICS End Patrol ECHO COMMENT: Wed Jun 22 17:54:07 GMT 2005 Time OK. ___end___ Wed Jun 22 21:14:43 GMT 2005 CHIP Start Patrol Wed Jun 22 21:14:55 GMT 2005 PICS Start Patrol WEATHER COMMENT: Wed Jun 22 21:14:38 GMT 2005 Misting has declined, resuming PICS, CHIP, and PSPT observations. In thinner cirrostratus overcast. ___end___ Wed Jun 22 21:43:31 GMT 2005 CHIP End Patrol Wed Jun 22 21:43:35 GMT 2005 PICS End Patrol WEATHER COMMENT: Wed Jun 22 21:43:36 GMT 2005 Fog rolled in from downslope. Closing domes. Idling instruments. ___end___ NICE PICSLIMB IMAGE: 2131 NICE PICSDISC IMAGE: 2133 NICE CHIP IMAGE: 2132 **PSPT PROBLEM**: Thu Jun 23 00:48:55 GMT 2005 Did a partial autopsy on the Lytron recirculating chiller pump. Awaiting Darryl and Allen's opinions but it looks like initial use of the aluminum heat exchangers and running an antifreeze coolant thru the circulator may have caused excessive corrosion--evident in the effort I had to make to scrape that stuff off the plates when we replaced them with the copper tube version of the heat exchanger plates. The Fluid-o-tech pump unit has an integral filter screen that was clogged with gunk-- almost like blue (copper?) kidney or gall stones. It was probably that and possibly friction due to wear and lubricant deterioration that produced enough resistance to stall the motor. Motor runs OK, albeit a bit noisily, with no load. Motor's centrifugal switch appeared to work OK, contacts were not very dirty or burned. Windings looked OK. Fibrous packing around bearings was broken up a little, tamped it down. The slot in the output shaft was pretty worn out--looked like a hysteresis curve rather than a nice rectangular cut. ___end___ Thu Jun 23 01:06:47 GMT 2005 MkIV