From: Russet McMillan
Subject: 3.5m Night Log 20070211
Date: Mon, 12 Feb 2007 07:01:51 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Sunday, February 11, 2007
                                                           ACTUAL
  ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 B.Woodgate       C.Grady,B.Woodgate,    DIS            --:--  --:--
                  G.Hilton
 G.Kacprzak       C.Churchill            DIS            --:--  --:--
   INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
  I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 DD03/O       18:39  00:00  5.4   0    0    0    0    0    0    0    0
 NM05/R       00:00  05:55  2.8  3.1   0    0    0    0    0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
1st half Observing Specialist: G.Saurage
Complete overcast at sunset. Icy rain 20:00. Continued high humidity,
light precipitation rest of 1st half.
2nd half Observing Specialist: R.McMillan
Second half had continued clouds and high humidity.  Rain started
around 3 am, then turned to snow.  It was just beginning to stick
(about half an inch) when I did morning checkout, so without thinking
I parked in the normal position instead of facing south.  At dawn it
was just a little too cold for the roof heaters, but they might be
helpful later in the day.
Both the 3.5m and the Sloan dewpoint sensor appeared to max out at a
dewpoint of 0C, refusing to measure higher than that.  Not a problem
right now, as the temperatures are below freezing.
                       ------- 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
    -------------------------------------------------------------------
     15:58    42    27                  ??    529   cloudy     none
     16:58    40    28                  ??    549   cloudy     none
     17:58    40    28                  ??    799   cloudy     none
     18:58    38    30                  ??    555   cloudy     none
     19:58    38    32                  ??    626   cloudy   lt rain
     20:58    36    32                  ??    652   cloudy    humid
     21:58    35    31                  ??    584   cloudy    humid
     22:58    34    32                  ??    496   cloudy    humid
     23:58    33    32                  ??    548   cloudy    humid
     00:58    32    32                  ??    585   cloudy    humid
     01:58    31    31                  ??    490   cloudy     fog
     02:58    30    30                  ??  72157   cloudy   lt rain
     03:58    30    30                  ??   6519   cloudy   lt snow
     04:58    28    27                  ??    387   cloudy   lt snow
     05:58    27    27                  ??    562   cloudy   lt 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 TCC version: 2.8.5
      Current TUI version: TUI 1.2