From: "Camron Hastings"
Subject: 3.5-meter Obs Log 980527
Date: Thu, 28 May 1998 06:04:19 -0600
			      WEDNESDAY, MAY 27th, 1998
			     APACHE  POINT  OBSERVATORY
				 3.5-Meter Observing Log
                                 ACTUAL
 ASTRONOMER      OBSERVER(S)      INSTRUMENT    DATE     START  FINISH
----------------------------------------------------------------------
Turner           C. Hastings         DIS        5/27     21:42  22:22
Holt 	           C. Hoopes          SPIcam    5/27-28    22:52  01:10
Anderson	     S. Anderson		SPIcam	5/28     01:10  04:19
 INST        SCHEDULED       OBS      WEATH     EQUIP    DAY   NOTUSED
I/RS/DN    START FINISH    D    B    D    B    D    B    USE   D    B
-----------------------------------------------------------------------
PU01/O     21:42 22:22    .7    -    0    -    0    -     0    0    -
NM04/R     22:52 01:10    2.3   -    0    -    0    -     0    0    -
UW05/R     01:10 04:19    3.2   -    0    -    0    -     0    0    -
(note: times listed include instrument change time)
                               ACTIVITY LOG
	Telescope opened this evening, early, at 19:30 MDT. Dust counts
were much lower than previous days, around 1000 in the enclosure. The
haze was also less of an issue, though still present. All in all, a
beautiful night, with everyone at APO up and active! ;)
	Last nights rotator problems were diagnosed and resolved by a
hard working Engineering team. Replacement of the motor and work on
the bearings was necessary, and John, Mark & Dave had it all together
before twilight! All rotator functions are operable, even improved.
	Minor problems with the control room MAC crashing*. Did not
cause any problems with the observing, luckily. Slowly, I am getting
the hang of this. Everything except those wacky passwords! Also, work
continues on the Observing Specialist's Manual, look for it in the
stores by Christmas!
	Camron Hastings  :]
* Trouble report filed
			           OBSERVER COMMENTS
-------------------------------------------------------------------
(Comments for observer NM04 pulled from logs...)
23:54:30:mactcp_Cam:129:0:message     How's everything going?
23:56:37:mactcp_charles:23:0:message  very smoothly. Driftscanning
is running perfectly. I'm trying the new slow scan option, and it
seems to work. Focus seems to be holding, maybe its degraded by
.1 or .2 pixels.
-------------------------------------------------------------------
Instrument, telescope, support, and weather were all excellent.
SPIcam bias level appears low, but Al Diercks warned us beforehand
that there was a recent (and perhaps temporary) change here.
Also as Diercks advised beforehand, new shutter opening time is not
yet calibrated well, so not clear that exposure times in headers
are correct; a possible caution here (but ask Al) is that exposure
times should be kept at ~4sec or longer if possible,
pending clarification of this (we collected a little relevant
data, and Diercks et al hope to collect more).
	Scott Anderson UW05
-------------------------------------------------------------------
                                  FOCUS LOG
                                MAY 27th, 1998
                 Best     Telescope             Wind           Seeing
Time   Instr     Focus     Az  El    #Temp     Dir MPH  filter  FWHM "
----------------------------------------------------------------------
21:05  DIS	   -200/6579   323 56  14.4/15.4   195 10.2   r    .98"
22:00	 DIS     -225/6549   228 49  13.9/14.6   221 10.5   r    .86"
23:01  SPIcam  -275/6314    19 65  13.9/13.8   206  9.0   V    .98"
Another focus log was lost with MAC crash. Info had not been recorded.
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER LOG
                               MAY 27th, 1998
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    71    13     11   265  (W)     1407     Clear      None
     17:01    71    14     15   215  (SW)    1190     Clear      None
     18:01    66    13     14   266  (W)     1294     Clear      None
     19:01    65    14      8   216  (SW)    1274     Clear      None
     20:01    59    14     11   225  (SW)    1353     Clear      None
     21:01    58    13     13   231  (SW)    1675     Clear      None
     22:01    57    11     10   218  (SW)    1866     Clear      None
     23:01    57    11     12   216  (SW)    1844     Clear      None
     00:01    58    10      6   240  (WSW)   1806     Clear      None
     01:01    58    11      5   255  (WSW)   1547     Clear      None
     02:01    58    11      7   264  (W)     1400     Clear      None
     03:01    57    11      6   268  (W)     1930     Clear      None
     04:01    56    12      7   268  (W)     2025     Clear      None
note: the wind was coming from the azimuth listed.  The convention
used is north=0 degrees, east=90 degrees. The dust count is for the
particles > 1 micron per 0.1 cu.ft.
                              TELESCOPE STATUS
Primary, secondary, and tertiary mirrors in place and collimated.
Primary support system operational.  Mirror ventilation system in
place.  Telescope drives operational.  Current Remark version: 2.41
Current guide software version: GIm Ctrl v3.0b 15.out
					   YULE LOG
					 (Just Joking)
-Camron Hastings & Karen Gloria