Date: Wed, 17 Jan 2001 04:44:45 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20010116
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                      Tuesday, January 16th, 2001
                                                          ACTUAL
  ASTRONOMER    OBSERVER(S)           INSTRUMENT       START  FINISH
 --------------------------------------------------------------------
 P.Szkody       P.Szkody              DIS(High)        17:50  19:45
   INST        SCHEDULED     WEATH     EQUIP     OBS    DAY   NOTUSED
  I/RO/DN    START FINISH   D    B    D    B   D    B   USE   D    B
 --------------------------------------------------------------------
 UW02/R      18:17  00:10  5.6  5.0   0    0  1.2   0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
  Observing Specialist, 1st Shift: Russet McMillan
  High winds in the afternoon, borderline humidity and dust counts
  just at the end of twilight, pointing difficulties, and dreadful
  seeing could not deter us from observing a flux standard.  But by
  the time we got to a science target, the clouds were thickening
  steadily.  No useful data were obtained after about 19:15.  The
  telescope was closed at 19:45, and a few snowflakes came to visit
  starting at 20:30.
  Observing Specialist, 2nd Shift: Jack Dembicky
  Started 2nd half with clouds and a couple snow flakes to set the rain
  sensor off.  We had about 1 inch of light fluffy snow by 03:30 which
  prevented any chance of opening the enclosure for the remainder of the
  night.  I started the snow program as well to reduce any further buildup
  on the enclosure. The observer reported that she only got about 10 mins.
  of questionably useful data for the entire night. Stopped snow program
  at 04:30 and left note on white board for the day staff to run if
  possible.  I left enclosure facing direction of wind (what little there
  is).
         --------------- INSTRUMENT FOCUS LOG ----------------
                                      Air/Truss   Wind
 Time Instrument   Focus      Az El    Temp-C   Dir MPH  filt   FWHM"
 ---------------------------------------------------------------------
18:06 DISslit     -150(248)   45  50  -7.1/-4.9  284  11   -     2.65
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    27     7     19   264  (W)      461  mstly clr   none
     17:01    24     8     13   251  (WSW)    455  ptly cldy   none
     18:01    20    14      9   287  (WNW)   1690  ptly cldy   none
     19:01    20    12     17   272  (W)      545 mstly cldy   none
     20:01    19    12      8   265  (W)      374  cloudy     lt snow
     21:01    20    11     12   279  (W)      294  cloudy     lt snow
     22:01    19    11      6   257  (WSW)    236  cloudy      none
     23:01    19     8      8   261  (W)      243  cloudy      none
     00:01    19     9     11   227  (SW)     376  cloudy     lt snow
     01:01    19    10      3   183  (S)      450  cloudy      none
     02:01    18    11      9   205  (SSW)    440  cloudy     lt snow
     03:01    17    14      7   179  (S)      402  cloudy     lt snow
     04:01    17    14      6   167  (SSE)    417  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
  Primary, secondary, and tertiary mirrors in place and collimated.
  Primary support system operational. Mirror ventilation system in place.
  Telescope drives operational. Current Remark version: 2.62. Current
  guide software version: GIm Ctrlv3.0b27. Current TCC version is 2.4.1
  Current MC version: v1_7_3.
  - Russet McMillan, Jack Dembicky