From: Russet McMillan
Subject: 3.5m Night Log 20061230
Date: Sun, 31 Dec 2006 05:57:58 -0700 (MST)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Saturday, December 30, 2006
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT   START  FINISH
 -------------------------------------------------------------------
 G.Wolf-Chase    G.Wolf-Chase,M.Smutko   NICFPS       --:--  --:--
 T.Murphy        R.McMillan              Apollo       --:--  --:--
 A.Harper        A.Harper                NICFPS       --:--  --:--
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UC04/R      18:05  22:40   0   4.6   0    0    0    0    0    0    0
 UW19/O      22:40  00:00   0   1.3   0    0    0    0    0    0    0
 UC03/R      00:00  06:08  1.7  4.4   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
1st Half Observing Specialist: G.Saurage
About 4-5" of accumulation on the dome at 16:00. Fog all first half.
2nd Half Observing Specialist: R.McMillan
Second half started out foggy, but even when humidity dropped and
skies cleared the dome was still covered in encrustations of snow,
preventing any chance of opening.  In addition to running the snow
program, I spent several hours up in the dome trying, again, to align
the DIS gratings, but I had considerable trouble with them.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:02    23    19     14   346  (NNW)    842   cloudy     fog
     17:02    23    19      6    34   (NE)   3937   cloudy     fog
     18:02    23    20      4   289  (WNW)   4975   cloudy     fog
     19:02    23    19      2   297  (WNW)   4632   cloudy     fog
     20:02    24    20     11   353    (N)   8070   cloudy     fog
     21:02    24    20     12    29  (NNE)  14503   cloudy     fog
     22:02    24    20     11     9    (N)   9646   cloudy     fog
     23:02    24    20     12    30  (NNE)   7312   cloudy     fog
     00:02    25    20      9    17  (NNE)   7600 mstly cldy  humid
     01:02    24    18     12    39   (NE)   4753 mstly clr    none
     02:02    25    20      7     0    (N)    250    clear     none
     03:02    27    22     13     1    (N)    209    clear     none
     04:02    26    19     15    14  (NNE)    153    clear     none
     05:02    23    17     17    25  (NNE)    195    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
      Telescope drives operational. Current TCC version: 2.8.5
      Current TUI version: TUI 1.2