Mauna Loa Solar Observatory Observer's Log 
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Thu Apr 21 17:19:09 GMT 1994
Year: 94  Doy: 111
Observer: koon

COMMENT: Thu Apr 21 17:19:16 GMT 1994
Clear sky, wind ~20 mph from the southeast, temp.=52 F.

Thu Apr 21 17:23:14 GMT 1994: Patrol Start
Thu Apr 21 18:00:15 GMT 1994: Filemark-Calibration
Thu Apr 21 18:49:47 GMT 1994: Filemark

COMMENT: Thu Apr 21 19:03:12 GMT 1994
Accidentally crashed the program by doing an rlogin akala from the xterm
window.  Restarted everything and inserted a new tape P00046.

Thu Apr 21 19:04:36 GMT 1994: Patrol Start
Thu Apr 21 20:02:17 GMT 1994: Filemark-Calibration

COMMENT: Thu Apr 21 20:24:09 GMT 1994
Extended dome slot.

Thu Apr 21 21:02:18 GMT 1994: Filemark-Calibration

DPMON COMMENT: Thu Apr 21 21:03:54 GMT 1994
Installed heat filter glass #940, ring is much more evident.


DPMON COMMENT: Thu Apr 21 21:09:18 GMT 1994
Installed square clear glass filter (marked KG2 on envelope), ring still
evident.


DPMON COMMENT: Thu Apr 21 21:14:08 GMT 1994
Installed small yellow filter (KG2A) with .8" lyot stop, slight ring close
to limb is visible, need larger exposure.

Thu Apr 21 21:17:19 GMT 1994: Patrol End
Thu Apr 21 21:20:11 GMT 1994: Patrol Start

DPMON COMMENT: Thu Apr 21 21:20:12 GMT 1994
Tried manually setting the exposure to 100 and that improved the brightness
of the prominences, however the corona is getting washed out and we lose
detail at the limb.  Also there is a ring right at the limb.
Taking some data now with the higher exposure.  It looks as though the best
filter is the blue one (#4063), I will replace that one and set the exposure
back to 50.


DPMON COMMENT: Thu Apr 21 21:27:58 GMT 1994
Blue filter is now back in place and exposure is set to 50.


COMMENT: Thu Apr 21 21:32:35 GMT 1994
Wind is bouncing spar around.


COMMENT: Thu Apr 21 21:59:43 GMT 1994
Spar lost tracking, closing down.
mark-Calibration

Thu Apr 21 22:01:02 GMT 1994: Patrol End

MKIII COMMENT: Thu Apr 21 22:16:37 GMT 1994
Did a dark scan as last scan on tape.


COMMENT: Thu Apr 21 22:38:09 GMT 1994
Activity report:
QL: 43; 63; 112; 230; 280.
No coronal activity.

TAPES:
MKIII: H00744
DPMON: P00045 and P00046
LOW-L: L00028 in drive #1

Thu Apr 21 22:40:56 GMT 1994: Filemark
SCAN-LOG 
SCAN-LOG  17:25:20.  4/21/94 DOY 111      
    17:31:26      17:34:38      17:37:50      17:41:01      17:44:15  
    17:47:26      17:50:39      17:53:51      17:57:04      18:00:15  
    18:03:27      18:06:37      18:09:49      18:12:59      18:16:11  
    18:19:21      18:22:33      18:25:43      18:28:54      18:32:04  
    1838 0 CL     18:52:47      1857 15CL     19:21:17      19:24:24  
    19:27:39      19:30:48      19:34:01      19:37:10      19:40:18  
    19:43:25      19:46:36      19:49:42      19:52:50      19:55:57  
    19:59:05      20:02:11      20:05:19      20:08:25      20:11:33  
    20:14:39      20:17:47      20:20:54      20:24:01      20:27:08  
    20:30:16      20:33:23      20:36:31      20:39:40      20:42:54  
    20:46:01      20:49:09      20:52:15      20:55:23      20:58:30  
    21:01:38      21:04:45      21:07:53      21:11:01      21:14:15  
    21:17:22      21:20:30      21:23:38      21:26:46      21:29:53  
    21:33:02      21:36:10      21:39:19      21:42:26      21:45:35  
    21:48:43      21:51:51      21:54:58      21:58:06      22:05:23  
  0 ERRORS
OK