Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Tue Mar 21 17:18:59 GMT 1995 Year: 95 Doy: 080 Observer: koon WEATHER COMMENT: Tue Mar 21 17:19:11 GMT 1995 Clear sky, wind=15 mph from the SSE, temp=40 F. COMMENT: Tue Mar 21 17:19:52 GMT 1995 Started up using Trot instead of Run, got error message: /opt/dPMon/src/Bin/xv: Permission denied xv -root /opt/d/Data/mk3.gif But program seems to be running normally otherwise. Tue Mar 21 17:26:38 GMT 1995: Patrol Start DPMON COMMENT: Tue Mar 21 17:29:25 GMT 1995 Optical runaway, ffixing. Tue Mar 21 17:29:58 GMT 1995: Patrol End Tue Mar 21 17:30:34 GMT 1995: Patrol Start DPMON COMMENT: Tue Mar 21 17:31:41 GMT 1995 Had a "Camera:Busy" error, cleared it. Tue Mar 21 18:00:55 GMT 1995: Calibration Tue Mar 21 19:00:58 GMT 1995: Calibration MKIII COMMENT: Tue Mar 21 19:21:46 GMT 1995 Calibration took a while due to occassional light dust blowing up above us from the road construction below, I had to wait a few times to get the best scans. COMMENT: Tue Mar 21 19:23:25 GMT 1995 There appears to be a cme occurring at PA=125, small underlying prominence is visible in that region. COMMENT: Tue Mar 21 19:40:17 GMT 1995 Definitely looks like a CME occurring as mentioned earlier, luckily the road construction has stopped for a while. Will send out a CME alert. Tue Mar 21 20:00:56 GMT 1995: Calibration DPMON COMMENT: Tue Mar 21 20:09:01 GMT 1995 Optical runaway, fixing Tue Mar 21 20:10:16 GMT 1995: Patrol End Tue Mar 21 20:10:38 GMT 1995: Patrol Start COMMENT: Tue Mar 21 20:13:22 GMT 1995 Wind now coming directly from area of construction, closing down. Tue Mar 21 20:13:54 GMT 1995: Patrol End MKIII COMMENT: Tue Mar 21 20:17:42 GMT 1995 From the latest difference images it appears the CME has faded quite a bit. LOW-L COMMENT: Tue Mar 21 21:53:00 GMT 1995 David and I got the program going again. The Ephemeris program had a problem with an equation that calculates RA, this problem existed only for one day per year (yesterday), the program was modified by changing that equation even though it would probably work for all other days of the year. The old version of sun_eph.c is compiled into the old version of lowl.exe which has been renamed to lowl.321. The new version of lowl.exe (with the sun_eph.c change) is in use right now and appears to be working correctly. Lowl is back in operation. MKIII COMMENT: Tue Mar 21 22:13:52 GMT 1995 Note that SCAN-LOG listing at the end of this log doesn't list scans taken before the cal at 1816, actual start of scans was around 1725 ut. COMMENT: Tue Mar 21 22:21:56 GMT 1995 Activity report: QP: 240-255; 273; 298. CME at PA=125 throughout observing day. TAPES: ****** MKIII: H00998 DPMON: P00317 LOW-L: Back in operation with L00205 in drive #1 Tue Mar 21 22:24:16 GMT 1995: Filemark SCAN-LOG SCAN-LOG 17:27:25. 3/21/95 DOY 80 1813 0 CL 18:16:18 1850 15CL 19:07:29 19:16:35 19:19:48 19:22:55 19:26:05 19:29:14 19:32:22 19:35:31 19:38:44 19:41:50 19:44:58 19:48:05 19:51:14 19:54:21 19:57:28 20:00:33 20:03:44 20:06:49 20:09:56 0 ERRORS OK