Date: Wed, 15 Oct 1997 07:56:50 -0600 (MDT)
From: Charles Corson
Subject: 3.5m obslog 971014
                         TUESDAY OCTOBER 14, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Corson       DIS          10/14  19:15 20:33
Szkody       DIS          10/14  20:33 5:45
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
PU01/S     19:52 20:33    0    0.7  0    0    0    0    0    0    0
UW11/R     19:53 05:45    0    9.2  0    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 at 19:00 with clear skies, great conditions.
Sky background in the blue was again, very high, and the decision
was made to collect more throughput data.  The decision was
partly based on the probability of performing collimation and
other engineering tasks Wed. night.  Tonight was also, photometric.
Some of the throughput data has been reduced.  Indications are that
DIS delivers 16%(@4800-4900Angstroms) and  14%(7000Angstroms).
There has been speculation as to the consistency of these
measurements. Hopefully, when the full data set is reduced, this
can be answered.
Paula Szkody observed with DIS and had a very productive night.  Paula
observed several Nova for period determination.  The telescope
performed well as did the guider.  Seeing remained excellent for
the course of the night.
                                FOCUS LOG
                             OCTOBER 14 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El    #Temp   Dir MPH  filter  FWHM "
1932   DIS     -300(6593) 186 77   5.4/12.1 0   0    r       1.6
20:30  DIS     -100       175 74   6.0/7.6  87  2    r       1.1
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                              OCTOBER 12 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.   Dir.       Dust    Sky          Precip.
     16:01    50    21      6   187  (S)             clear        none
     17:01    51    20      1   237  (WSW)    369    clear        none
     18:01    45    20      2   238  (WSW)    403    clear        none
     19:01    43    19      0    95  (E)      380    clear        none
     20:01    41    21      8    83  (E)      330    clear        none
     21:01    46    16      3    92  (E)      295    clear        none
     22:01    45     2      9   165  (SSE)    131    clear        none
     23:01    45     8      8   131  (SE)     174    clear        none
     00:01    43     9      2   124  (SE)     156    clear        none
     01:01    44    11      8   125  (SE)     185    clear        none
     02:01    43     6      3    98  (E)      184    clear        none
     03:01    44     2      2   115  (ESE)    105    clear        none
     04:01    44     7      4   126  (SE)     129    clear        none
     05:01    45    -1      6   173  (S)       36    clear        none
     06:01    46    -2      1   130  (SE)      30    clear        none
     07:01    47    -1      1   111  (ESE)     18    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: GIm Ctrlv3.0b11.
Charles