Date: Fri, 20 Dec 2002 05:40:44 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20021219
                         Apache Point Observatory
                         3.5m Telescope Night Log
                        Thursday, December 19, 2002
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START FINISH
 -------------------------------------------------------------------
 B.Gillespie    J.Barentine,J.Dembicky   --            --:--  --:--
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 EN01/O      17:58 06:03    0  12.1   0    0    0    0    0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: J.Barentine
 First half began with a clear sky but increasing winds after sunset.  A
 wind closure limit of 10MPH was instated late in the afternoon out of
 concern for blowing snow and ice falling into the enclosure.  Wind never
 dropped below the threshold for the remainder of first half.
 2nd Half Observing Specialist: J.Dembicky
 The wind never dropped below the 10MPH closure limit so we remained
 closed.  I turned the roof heaters on at 5:30 to help rid us of ice
 during the day.
                        ------- FAILURE LOG -------
 PROG   INST   FAILURE MODE     TIME
      (SEGDFVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                 ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    20     3     10   354  (N)       77  MstlyClr    none
     17:01    19     3      8     2  (N)       98   Clear      none
     18:01    19     4     17    22  (NNE)     76   Clear      none
     19:01    20     4      4     5  (N)       86   Clear      none
     20:01    20     4      5   349  (NNW)     83   Clear      none
     21:01    21     2     15   351  (N)       70   Clear      none
     22:01    21     2     15    11  (N)       85   Clear      none
     23:01    21    -1     16   359  (N)       68   Clear      none
     00:01    20     4     14   344  (NNW)     80   Clear      none
     02:01    21     0     19   300  (WNW)     66   Clear      none
     03:01    23    -5     15   315  (NW)      65   Clear      none
     04:01    24    -5     19   302  (WNW)     66   Clear      none
     05:01    24    -6     14   298  (WNW)     76   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: 2.82
   Current guide software version: GIm Ctrlv4.1b2
   Current TCC version: 2.6.8