Date: Thu, 1 Jan 2004 05:39:18 -0700 (MST)
From: John Barentine
Subject: 3.5m Night Log 20031231
                         Apache Point Observatory
                         3.5m Telescope Night Log
                       Wednesday, December 31, 2003
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 B.Moorthy      B.Moorthy               SPIcam         --:--  --:--
 A.Nitta        J.Krzesinski,           DIS            --:--  --:--
                J.Barentine
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 NM05/R      18:05 00:00    0   5.9   0    0    0    0    0    0    0
 NM09/O      00:00 06:08   4.3  1.8   0    0    0    0    0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: B.Ketzeback
 Heavy cloud cover and threats of rain/snow prevented us from opening.
 2nd Half Observing Specialist: J.Barentine
 By about 1:30 the first pellets of snow/sleet began to hit the cloud
camera and we thought it prudent to go ahead and close that up, probably
for the night.  An hour later the snow began accumulating outside.  The
APO Snow Removal Team -- a corps of experts -- sprang into action,
clearing sidewalks with ruthless efficiency as the snowfall morphed into a
freezing rain event toward 04:00.  The storm paused for a while before
picking up again after 05:00.  At this point, Jurek and I agreed that the
night was a loss.
                        ------- 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    39    10     11   188  (S)      332   cloudy    none
     17:01    36     5     19   195  (SSW)    252   cloudy    none
     18:01    37    11     18   194  (SSW)    298   cloudy    none
     19:01    35    16     19   202  (SSW)    893   cloudy    none
     20:01    34    14     14   216  (SW)    1198   cloudy    none
     21:01    33    13      8   249  (WSW)   1390   cloudy    none
     22:01    33     9      8   264  (W)     1038   cloudy    none
     23:01    33    24      8   266  (W)     1202   cloudy    none
     00:01    34    25     14   263  (W)        0   cloudy    snow flurries
     01:01    35    25     19   243  (WSW)      0   cloudy    snow flurries
     02:01    33    27     11   245  (WSW)    557  Overcast   snow
     03:01    29    28     13   265  (W)     5853  Overcast   snow
     04:01    30    30     19   236  (SW)     274  Overcast   freezing rain
     05:01    30    30     15   256  (WSW)    644  Overcast   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 > 1u per 0.1 cubic feet.
                               TELESCOPE STATUS
   Telescope drives operational. Current Remark version: 2.85b
   Current guide software version: guider v4.1b4
   Current TCC version: 2.7.2  Current TUI version: TUI-0.80