Date: Sat, 2 May 1998 05:57:38 -0600 (MDT)
From: Tia Hoyes
Subject: 3.5m obslog 980501
                         FRIDAY   MAY  1, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER       OBSERVER          INSTRUMENT   DATE   START FINISH
York               Cole               DIS       5/01   19:30 21:19
Turner             Hoyes              DIS       5/01   21:20 21:55
Cooray             Cooray            GRIM2      5/01   ----- -----
Walterbos          Hoopes             DIS       5/01   ----- -----
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UC10/R     19:46 21:16    0   1.5   0    0    0    0    0    0    0
PU01/S     21:16 21:56    0   0.7   0    0    0    0    0    0    0
UC06/R     21:56 01:10    0    0    0   3.2   0    0    0    0    0
DD02/R     01:10 04:44    0    0   3.6   0    0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
The telescope was open tonight at 18:10.  Dave Cole was available for the Adler
program.  Comments:Other than some trivial difficulty focusing in still
bright skies, the twilight observing program ran like clockwork.
I observed for the Lens Monitoring Program.  (0957) No Problems.
Asantha Coorey and Charles Hoopes were shut out by dust.  I had to close at
22:00 due to high dust counts.
(* means a trouble report has been issued or appended to)
                               FOCUS LOG
                             MAY  1, 1998
                Best     Telescope             Wind                 Seeing
Time   Inst     Focus     Az   El   Temp#      Dir  MPH     filter   FWHM "
20:25  DIS   -150(6486) 127.3 51.4 9.4/12.34  266.8 9.1       IN     1.77
21:25  DIS   -100(6472) 237.9 76.2 10.9/11.46 232.5 10.9      IN     1.43
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
                               MAY  1,  1998
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    59    24     13   251  (WSW)   1249  light clouds    none
     17:01    54    20     11   276  (W)     1242  light clouds    none
     18:01    56    19     18   264  (W)     1380  light clouds    none
     19:01    55    21     16   271  (W)     1643  light clouds    none
     20:01    50    21      8   275  (W)     1455  light clouds    none
     21:01    52    19      7   254  (WSW)   1486  light clouds    none
     22:01    49    16     14   223  (SW)    1994  light clouds    none
     23:01    47    17      6   261  (W)     2423    clearing      none
     00:01    46    17      3   204  (SSW)   2457     clear        none
     01:01    50    17      4   270  (W)     2343     clear        none
     02:01    50    18      2   326  (NW)    1984     clear        none
     03:01    50    18     15    22  (NNE)   2005     clear        none
     04:01    49    16     11    26  (NNE)   1746     clear        none
     05:01    49    18     16    21  (NNE)   1813     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: 2.39
Current guide software version:GIm Ctrlv3.0b11.
-Tia