Date: Wed, 13 May 1998 06:12:20 -0600 (MDT)
From: Karen Gloria
Subject: 3.5-m obslog 980512
                           TUESDAY MAY 12, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Balick      Balick, Kwitter, Mae      DIS     5/12-13  21:27 04:32
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UW08/S     21:27 04:32    -   7.1   -    0    -    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 19:55, after spectral calibrations.  The
observers were Bruce Balick, Karen Kwitter, and Sarah Kate Mae for
UW08.  I forgot all about the PU01 run at the beginning of the night
so UW08 agreed to let me do that run at the beginning of Wednesday
night.
There were no problems.  We had another photometric night.  I ran the
pressurization fans when the dust count got up over 2000 p/0.1 cu ft.
This lowered the dust count by several hundred inside the telescope
enclosure.
			     OBSERVER COMMENTS
                                 FOCUS LOG
                                MAY 12 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El   #Temp    Dir MPH  filter  FWHM "
20:45  DIS   - 50(6545)  180  68 11.3/12.2  213  20    r      1.0
21:00 guide 56200(6554)  189  64 11.5/12.1  212  20    R      1.6
23:40 guide 57300(6624)  356  40 10.9/11.2  227  18    R      1.8
00:35  DIS   -250(6351)   72  41  8.3/10.1  241  12    r      1.6
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                               MAY 12 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust     Sky       Precip.
     16:01    55    14     16   217  (SW)    1768    clear       none
     17:01    55    15     24   218  (SW)    1756    clear       none
     18:01    55    14     23   242  (WSW)   1796    clear       none
     19:01    54    13     25   210  (SSW)   1792    clear       none
     20:01    53    11     25   232  (SW)    1978    clear       none
     21:01    53    10     21   213  (SSW)   1981    clear       none
     22:01    53     8     25   214  (SW)    1606    clear       none
     23:01    52     7     15   231  (SW)    1719    clear       none
     00:01    51     5     12   229  (SW)    2211    clear       none
     01:01    48     9      8   266  (W)     2251    clear       none
     02:01    47    11     14   222  (SW)    2172    clear       none
     03:01    48     9      9   203  (SSW)   1962    clear       none
     04:01    48     5     13   228  (SW)    1734    clear       none
     05:01    45    11      9   246  (WSW)   1723    clear       none
     06:01    46     9     10   264  (W)     1417    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.
-Karen