Date: Tue, 22 Jul 1997 04:03:01 -0600 (MDT)
From: Charles Corson
Subject: 3.5m obslog 970721
                           MONDAY JULY 21, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Rodgers		Grim	  7/21   --    --
Corson		DIS       7/22   --    --
Johnson		DIS       7/22	 --    --
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UW07/R	   21:46 01:10    0    0    0    0    0    3.4  0    0    0
PU01/0     01:10 02:10    0    0    0    0    0    1.0  0    0    0
NM03/R     02:10 04:34    0    0    0    0    0    2.4  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 removed from service for repairs to the altitude drive.
Close inspection of the drive this afternoon indicated the need to
disassemble the drive box and service the drive shaft and bearings.
                                FOCUS LOG
                              JULY 21, 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El    #Temp    Dir MPH  filter  FWHM "
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                               JULY 21, 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust    Sky          Precip.
     16:01    61    50      7   125  (SE)    2290
     17:01    63    47     11   105  (ESE)   2094
     18:01    63    47      5    68  (ENE)   2110
     19:01    61    47     15   103  (ESE)   2501
     20:01    57    50     17    95  (E)     2487
     21:01    57    46     12   100  (E)     2124
     22:01    58    43     16   121  (ESE)   2029
     23:01    54    50     10   169  (SSE)   1578
     00:01    54    49      7   164  (SSE)   1710
     01:01    55    49     10   153  (SSE)   2256
     02:01    55    48     12   133  (SE)    2040
     03:01    54    48     10   134  (SE)    1971
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: GImCtrl.1 6.21.97.
-Charles