Date: Sat, 16 Aug 1997 08:03:37 -0600 (MDT)
From: Karen Gloria
Subject: 3.5-m obslog 970815
                          FRIDAY AUGUST 15, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Turner          DIS       8/15   21:17 22:10
Harper         GRIM2     8/15-16 23:30 01:10
Skelton        SPIcam     8/16   01:10 04:58
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
PU01/S     21:17 22:17    -   0.6   -   0.1   -   0.2   0    -    0
UC03/R     22:17 01:10    -    0    -   1.3   -    0    0    -   1.7
UW08/R     01:10 04:58   0.3  2.0   0    0   0.3  1.2   0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
The telescope was opened at 20:15, after calibration images were
completed.  *Calibration images were delayed by the DIS blue camera
dewar, which had difficulty staying cool at first.
Twilight time was used to test telescope tracking.  The source of last
night's azimuth oscillation was found by the day staff and corrected
(the azimuth motors needed to be retuned).  Tracking (and pointing)
were very good.  No evidence of oscillation.  With instructions from
Russ Owen, I reverted back to the new version of the TCC software
(which was pulled out last night).  This ran over into PU01 a bit.
Tom Harrison contacted me with a GRB target of opportunity observation
request.  A new GRB was detected at 12h UT on 8/15.  The remaining
PU01 time was used to observe the GRB, although it was cloudy in that
quadrant at the time.
UC03 didn't show.  I tried to contact the observers, but they may both
be out of the country at this time.  I let Tom continue his GRB
observations with GRIM2 on UC03's time (this is charged to UC03).  Tom
was able to cover the central portion of the error box in the J band
under very good sky conditions.
Brooke Skelton and Gene Magnier were the observers for UW08.  They
offered to observe the GRB with SPIcam.  The sky conditions continued
to be very good.  After the GRB observations, *the azimuth axis
started to overshoot very badly, sometimes even ignoring axis inits.
It overshot every slew larger than 10 or so degrees for the remainder
of the night.  After UW08 was done, Craig Loomis logged in and he and
I ran some of his overslew tests, which collected some interesting
data.
                                FOCUS LOG
                             AUGUST 15 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El    #Temp   Dir MPH  filter  FWHM "
20:40 guider 56000(6805) 180  59  15.5/19.9 250  6   R+ND2    1.6
21:25  DIS    -200(    ) 263  66  15.3/17.2 218  8     r      1.1
23:40 GRIM2   -100(6731) 351  36  15.0/15.7 237 11     J      1.6
01:40 SPIcam  -200(    ) 350  32  15.2/14.5 243  3
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                              AUGUST 15 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust    Sky          Precip.
     16:01    67    41      8   264  (W)      433   clear          none
     17:01    67    39     10   275  (W)      468   clear          none
     18:01    67    39      5   268  (W)      443   clear          none
     19:01    65    39      6   268  (W)      453   clear          none
     20:01    60    44     10   237  (WSW)    375   clear          none
     21:01    58    42     10   241  (WSW)    404   clear          none
     22:01    60    41      7   196  (SSW)    510  mstly cldy      none
     23:01    60    42      9   216  (SW)     679  mstly cldy      none
     00:01    59    42      5   207  (SSW)    730  ptly cldy       none
     01:01    59    42      5   269  (W)      865   clear          none
     02:01    59    42      6   267  (W)      794   clear          none
     03:01    59    42      6   282  (WNW)    897   clear          none
     04:01    58    42      7   357  (N)      828   clear          none
     05:01    59    38      8   349  (NNW)    556   clear          none
     06:01    55    41      5   346  (NNW)    580   clear          none
     07:01    56    43     10    30  (NNE)    691   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 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: 2.36.
Current guide software version: GImCtrlv3.0b10.
-Karen