Date: Fri, 11 Jul 1997 06:36:39 -0600 (MDT)
From: Tia Hoyes
Subject: 3.5m obslog 970710
                         THURSDAY   JULY  10, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Harrison       GRIM2      7/10   ----  -----
Hodges          DIS       7/11   ----  -----
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
NM05/R     21:53 01:10    0    0   1.3  2.0   0    0    0    0    0
UW09/R     01:11 04:24    0    0   3.2   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 telescope was opened at 21:05. Joni Johnson and Tom Harrison had begun
taking darks at 20:30. I began to try a focus sequence as soon as we opened,
but, had to close at 21:35 as the sky became completely overcast.  Joni used
the available closure time to practice with GRIM and DIS.
There was quite a bit of lightning and high humidity through the evening.
The dust count shot up very high a number of times.  The humidity mixed with
dust caused a heavy haze and slight fog.
Paul Hodges and Ted Wyder were the observers for UW09, using DIS.  They used
most of their available time working with the lamps.
We were not able to reopen.
                               FOCUS LOG
                             JULY 10  1997
                Best    Telescope            Wind                 Seeing
Time   Inst     Focus    Az   El   Temp#     Dir  MPH     filter   FWHM "
telescope opened @:21:05
----NO FOCUS DATA------
telescope closed @:21:35
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
			      JULY  10  1997
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    50    46      4   312  (NW)     442  sctrd clouds    none
     17:01    53    47      1   289  (WNW)    353  sctrd clouds    none
     18:01    52    48      6   287  (WNW)    633  sctrd clouds    none
     19:01    52    49      3   338  (NNW)    641  sctrd clouds    none
     20:01    52    43      3   342  (NNW)    581  sctrd clouds    none
     21:01    52    44      8   280  (W)      879  sctrd clouds    none
     22:01    53    44     10   275  (W)      861   overcast       none
     23:01    51    47     13   242  (WSW)   1067   clearing     lightning
     00:01    50    46     12   214  (SW)    1124   clearing     lightning
     01:01    49    46     11   206  (SSW)   1389 mostly clear   lightning
     02:01    49    43     18   217  (SW)    1658 partly cloudy  lightning
     03:01    50    40     11   244  (WSW)   1427 partly clear/haze,dust,fog
     04:01    48    43      9   185  (S)     3244 partly clear     dust
     05:01    47    39      7   206  (SSW)    603   clearing       none
     06:01    48    39      9   229  (SW)     488 sctrd clouds     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: 2.35a.
Current guide software version: GIm Ctrl SI502 6.3.96.
-Tia