Date: Sun, 6 Jul 1997 04:49:09 -0600 (MDT)
From: Charles Corson
Subject: 3.5m obslog 970705
                           SATURDAY JULY 5, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Zucker       DIS          7/05   21:00 2:35
Corson       DIS          7/06   --    --
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UW11/R	   21:55 03:18    4.7  0    0.7  0    0    0    0    0    0
PU01/O     03:18 04:21    0    0    1.1  0    0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
The dome was opened shortly after 21:00 with clear skies and promise.
Daniel Zucker used DIS in Spectral mode with moderate success as set up
for his faint objects was difficult and time consuming.  Seeing was poor,
ranging from 1.7 - 2.4arc-sec.
The dust count was relatively high, but judged it to be of minimal
threat for the first half of the night.  However, the dust became visually
evident shortly after 2am and The mirror and dome surfaces took a hit.
The dome was closed at 2:35am.
No Lens monitoring data due to the dust conditions.
Cloudcam is currently down until a replacement fuse can be ordered, or
located.
The spicam autofill system is not counting down and it appears that the
thermistor has lost it's calibration.  On the good side, the split
coupling between the fill tube and dewar has been repaired.  Alan Diercks
and company have been notified.
                                FOCUS LOG
                              JULY 5, 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El    #Temp    Dir MPH  filter  FWHM "
21:15  DIS   -100(6609)   222 81   16.4/19.7 187 9    r       1.5"
23:00  DIS   -150(6778)   281 34   16.6/17.4 188 5    r       2.4"
01:50  DIS   -150(6527)   37  38   14.9/15.8 157 15   r       1.7"
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                               JULY 5, 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust    Sky          Precip.
     16:01    68    42     16   233  (SW)    1189    clear        none
     17:01    68    41      9   252  (WSW)   1093    clear        none
     18:01    71    44     11   268  (W)      935    clear        none
     19:01    67    40      1   299  (WNW)   1060    clear        none
     20:01    62    42      8   248  (WSW)   1038    clear        none
     21:01    59    41     10   216  (SW)    1096    clear        none
     22:01    62    41      9   181  (S)     1138    clear        none
     23:01    62    43     12   165  (SSE)   1711    clear        none
     00:01    62    42     15   169  (SSE)   1562    clear        none
     01:01    60    44     16   169  (SSE)   1640    clear        none
     02:01    59    44     11   170  (S)     1730    clear        none
     03:01    59    47     15   165  (SSE)   2173    clear        none
     04:01    58    44     18   155  (SSE)   3283    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: GImCtrl.1 6.21.97.
-Charles