From: Russet McMillan
Subject: 3.5m Night Log 20000322
Date: Thu, 23 Mar 2000 03:40:06 -0700 (MST)
                         WEDNESDAY MARCH 22, 2000
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Krisciunas	Krisciunas	   GRIM  	3/22    --    --
Anderson        Anderson           DIS          3/23    --    --
 INST        SCHEDULED     WEATH     EQUIP      OBS    DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UW07/R     19:10  00:10  1.8  3.2   0    0    0    0    0    0    0
UW03/R	   00:10  05:09	  -   5.0   -    0    -    0    0    -    0
(note: times listed include instrument change time)
                              ACTIVITY LOG
Observing Specialist: McMillan
The telescope was not opened tonight due to snow, high humidity, and
snow on the roof.  Heavy snow mostly fell during first half.  The sky
started to clear around midnight, but the humidity remained
troublesome.  After checking the amount of snow on the roof, I advised
the second half observer that I wouldn't be opening regardless of
weather.
Jeff Morgan took the opportunity to do some checks of repeatability in
secondary mirror motion when being homed.  All of the checks came out
good, with no evidence of steps being missed.  We also homed the axial
actuators of the tertiary mirror, since it was giving the "not a full
step" error on all three axes.  After homing, the error message
disappeared, although previous experience indicates that it will
probably return soon for one axis or another.  We have seen this error
almost constantly for the last month or so.
During the times when we were not actually experimenting with the
mirrors, the snow program was kept running, in hopes that the moderate
wind would blow some snow from the roof.
                            OBSERVER COMMENTS
                                FOCUS LOG
                              MARCH 22 2000
                                                  Wind
Time   Inst        Focus     Az  El   #Temp    Dir  MPH  filt  FWHM "
#First temp is air, second temp is telescope.
                                 WEATHER
                              MARCH 22 2000
                               Wind
     Time   Temp F Dewp F  MPH   Direction    Dust      Sky      Precip.
     16:01    29    29      8    11  (N)      114     cloudy      snow
     17:01    25    25     12    25  (NNE)    400     cloudy      snow
     18:01    25    24      1   213  (SSW)    880     cloudy      snow
     19:01    27    26      6   180  (S)     1012     cloudy      snow
     20:01    26    25      1   268  (W)      736     cloudy      snow
     21:01    21    20      9   269  (W)     1030     cloudy      snow
     22:01    21    17     14   263  (W)     1096     cloudy      snow
     23:01    21    20      1   275  (W)      958    mstly cldy   none
     00:01    21    18     13   277  (W)     1019    ptly cldy    none
     01:01    20    18     15   303  (WNW)   1442      fog        none
     02:01    20    20     19   293  (WNW)    425      fog        none
     03:01    21    20     17   281  (W)      364     cloudy      snow
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: 2.55b5.
Current guide software version: GIm Ctrlv3.0b27.  Current TCC version
is 2.2.2.
- Russet McMillan