Date: Sat, 24 May 1997 20:04:01 -0600 (MDT)
From: Karen Gloria
Subject: 3.5-m obslog 970523
                           FRIDAY MAY 23, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
York            DIS       5/23   20:44 21:38
Turner          DIS       5/23   21:38 22:18
Magnier        GRIM2    5/23-24  22:18 01:00
Rodgers        GRIM2      5/24   01:00 04:22
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UC12/R     20:08 21:38    -    0    -    0    -    0   0.9   -    0
PU01/S     21:38 22:18    -   0.7   -    0    -    0    0    -    0
UW05/R     22:18 01:00    -   1.5   -   1.2   -    0    0    -    0
UW04/R     01:00 04:22    -   3.1   -   0.3   -    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 19:30 MDT.  It was closed at 23:30, due to
clouds, and reopened at 00:40 MDT.  It was closed briefly, due to dust
at 02:15, and reopened at 02:30 MDT.
Gordon Richards was the observer for UC12, the Adler Planetarium
program.  I was the observer for PU01, the gravitational lens
monitoring program.  Gene Magnier was the observer for UW05, and
Bernadette Rodgers was the observer for UW04.
Conditions looked photometric late in the afternoon, so I took
calibration images for a throughput measurement.  The sky didn't stay
photometric, though, so I opted not to take throughput data.
During twilight, I took flats and Gordon Richards then took data for
the Adler program.
Clouds interrupted Gene Magnier's run and a brief bit of dust
interrupted Bernadette Rodger's run.  Other than that, all was OK.
                                FOCUS LOG
                               MAY 23 1997
                  Best   Telescope           Wind             Seeing
Time   Inst      Focus    Az  El    #Temp   Dir MPH  filter   FWHM "
20:45  DIS    -300(6187)   3  73  11.6/13.5 224  7     r       1.7
21:47  DIS    -350(6290) 321  52  10.2/12.1 124 12     r       1.9
22:40  GRIM2  -200(6273) 232  83  11.6/11.2 182  8     J       0.9
01:15  GRIM2  - 50(6504)  93  53   9.9/11.2            K       1.0
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                               MAY 23 1997
                                   Wind
    Time  Temp F  Dewp. F	MPH.	Dir.	     Sky          Precip.
    16:01    61      25         14   243  (WSW)     clear          none
    17:01    61      27          5   262  (W)       clear          none
    18:01    58      19          8   278  (W)       clear          none
    19:01    59      28          1   290  (WNW)     clear          none
    20:01    51      29          5   233  (SW)      clear          none
    21:01    53      24          8   194  (SSW)   ptly cldy        none
    22:01    51      32          8    99  (E)     ptly cldy        none
    23:01    53      28         10   153  (SSE)   ptly cldy        none
    00:01    53      28          9   184  (S)     mstly cldy       none
    01:01    52      29         10   206  (SSW)   ptly cldy        none
    02:01    51      30         10   182  (S)     ptly cldy        none
    03:01    50      28          8   182  (S)     ptly cldy        none
    04:01    50      25          9   236  (SW)    ptly cldy        none
    05:01    51      24          9   257  (WSW)   ptly cldy        none
note: the wind was coming from the azimuth listed.  The convention
used is north=0 degrees, east=90 degrees.
                             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 Ctrl SI502 6.3.96.
-Karen