Date: Sun, 24 Feb 2002 06:19:48 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20020223
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                      Saturday, February 23rd, 2002
                                                           ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 C.Anderson    C.Anderson, N. Chanover GrIm-f/20       17:30  20:00
               M.Kahre, D. Volez, J.Volez
 A.West        A.West, M.Bentz        DIS-High         04:05  05:55
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM02/O      18:49  00:10   0   4.2   0    0    0   1.2   0    0    0
 UW10/R      00:10  05:43   0   3.7   0    0   1.0  0.8   0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 I started cooling the enclosure (fans) around 16:30.  The first half
 observers started their dark frames around 15:30 and we opened the
 enclosure for further cooling around 18:15 under cirrus skies.
 The clouds thickened too much by 20:00 to get anything useful.  I left
 the telescope open so that Nancy could at least show her students how to
 use GrIm, but nothing useful for science was obtained.
 We re-opened around 04:05 under still cirrus skies but a clearing moving
 in from the W.
                   ------- FAILURE LOG -------
 PROG/INST  FAILURE MODE     TIME
 S/E/G/D/O     TI/SHU    START  FINISH    DESCRIPTION
 -----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 18:48  GrIm-f/20       0(648) 73  17    7.9/9.5   231  18  1.58  0.85
 04:13  DISslit        30(537) 105 59    5.4/5.4   268  15  none  1.37
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    51     0     12   266  (W)       57   Cirrus     none
     17:01    50     5     12   268  (W)       83   Cirrus     none
     18:01    45     7     23   237  (WSW)     68   Cirrus     none
     19:01    46     5     18   241  (WSW)    127   Cirrus     none
     20:01    45     6     15   249  (WSW)    221   Cirrus     none
     21:01    46     5     13   263  (W)      205   Clouds     none
     22:01    45     5     17   236  (SW)     210   Clouds     none
     23:01    43     8     20   205  (SSW)    307   Clouds     none
     00:01    43     7     15   222  (SW)     271   Clouds     none
     01:01    41     7     21   211  (SSW)    356   Clouds     none
     02:01    41     5     18   240  (WSW)    380   Clouds     none
     03:01    43    -1     16   236  (SW)     314   Clouds     none
     04:01    43    -5     11   269  (W)      320   Cirrus     none
     05:01    42    -6     12   278  (W)      357  Mst. Clear  none
     06:01    41    -6     20   274  (W)      329  Mst. 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 > 1u per 0.1 cubic feet.
                               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: 2.80b
   Current guide software version: GIm Ctrlv4.1b2
   Current TCC version: 2.6.1   Current MC version: v1_7_3