Date: Sat, 1 Nov 1997 06:10:53 -0700 (MST)
From: Charles Corson
Subject: 3.5m obslog 971031
                         FRIDAY OCTOBER 31, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Cole		DIS	  10/31  17:06 18:36
Richards	DIS	  10/31  18:36 04:58
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UC09/R     17:06 18:36    0.8  0.7  0    0    0    0    0    0    0
UC01/S     18:36 04:58    8.9  0    1.5  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)
Good skies and windy conditions prevailed for both the Adler program
and Gordon Richards.  The seeing was generally poor, 1.5 arc-sec on
the whole.
The Adler group was successful in observing Pluto at elevations of less
than 10degs.  Tracking was poor, but not unexpected for such elevations.
Gordon Richards continued his survey for QSO's.  The night was very
successful, over fifteen targets observed.  Gordon did note a distinct
shift in the blue calibration arcs of about 4pixels from the afternoon
cals to the evenings.  No shift was seen in the red.  Gordon will be
observing for the next several nights so, we hope to be able to
characterize this for a more formal report.  The bottom line, the arcs
taken during the night seemed sufficient to properly calibrate the data
with the afternoon arcs being to only flawed set.  Also, Gordon lost
15% of his time due to high winds, dome closed.
                                FOCUS LOG
                             OCTOBER 31 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El    #Temp   Dir MPH  filter  FWHM "
18:11  DIS    50(6632)   277  54  10.3/10.8 290 20   r       1.9
18:45  DIS    75(6583)   267  72  10.3/10.8 290 21   r       1.8
5:20   DIS    100(6487)    2  77  7.7/7.8   19  8    r       1.5
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                              OCTOBER 31 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.   Dir.       Dust    Sky          Precip.
     16:01    51    18     15   301  (WNW)    204    clear        none
     17:01    51    18     18   290  (WNW)    213    clear        none
     18:01    50    17     19   295  (WNW)    284    clear        none
     19:01    50    17     14   269  (W)      268    clear        none
     20:01    50    14     19   304  (NW)     289    clear        none
     21:01    50     9     29   298  (WNW)    178    clear        none
     22:01    49     9     12   344  (NNW)    164    clear        none
     23:01    48    12     14   308  (NW)     163    clear        none
     00:01    47    14     17    52  (NE)     186    clear        none
     01:01    47    18     29    15  (NNE)    222    clear        none
     02:01    47    20     27    16  (NNE)    192    clear        none
     03:01    47    20     27     5  (N)      152    clear        none
     04:01    46    20     26     6  (N)      210    clear        none
     05:01    46    20     10     8  (N)      220    clear        none
     06:01    46    21     23   352  (N)      214
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: GIm Ctrlv3.0b11.
Charles