From: Russet McMillan
Subject: 3.5m Night Log 20030228
Date: Sat,  1 Mar 2003 06:12:47 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Friday, February 28, 2003
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START FINISH
 -------------------------------------------------------------------
 D.York         M.Hammergren            DISII.5        --:--  --:--
                J.Dembicky              SPIcam         --:--  --:--
 J.Frieman      J.Frieman, J.Gaskins    DISII.5        --:--  --:--
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 -------------------------------------------------------------------
 UC06/R      18:53  00:00  5.1   0    0    0    0    0    0    0    0
 UC04/R      00:00  05:38  5.6   0    0    0    0    0    0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: J.Dembicky
 I started cooling the telescope via fans around 16:30 under promising
 looking skies (aka clear sky).  Mark Hammergren logged in around 18:05 to
 start taking lamp cals and the clouds started to appear shortly
 thereafter.
 Unfortunately, the clouds would come and go all night long.  Just about
 the time I thought it safe to open and start a new batch of clouds would
 form overhead and completly cloud us out again.
 2nd half Observing Specialist: R.McMillan
 Snow.  Clouds.  Bouncy borderline humidity.
                        ------- 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    32    14     23   252  (WSW)    361   Clear      none
     17:01    30    15     18   256  (WSW)    368   Clear      none
     18:01    29    19     15   274  (W)      572  Mst. Clr    none
     19:01    27    18      7   275  (W)      602  Mst. Cldy   none
     20:01    26    17     13   278  (W)      577  Mst. Cldy   none
     21:01    26    15     21   287  (WNW)    401  Mst. Cldy   none
     22:01    26    14      9   280  (W)      372   Cloudy     none
     23:01    26    14     14   287  (WNW)    418   cloudy     snow
     00:01    26    16     18   268  (W)      345   cloudy     snow
     01:01    24    19     20   268  (W)      374   cloudy     snow
     02:01    22    21     10   288  (WNW)    387   cloudy     snow
     03:01    23    17     19   254  (WSW)    402   cloudy   lt snow
     04:01    23    17     18   270  (W)      521  mstly cldy  none
     05:01    22    18     18   268  (W)      498  mstly cldy  none
     06:01    22    16     21   271  (W)      351  mstly cldy  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