Date: Sat, 18 Dec 2010 05:01:38 -0700 (MST)
Subject: 3.5m Night Log 20101217
From: jwhueh@apo.nmsu.edu
                       Apache Point Observatory
                       3.5m Telescope Night Log
                       Friday, December 17, 2010
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
J.Gauthier        J.Gauthier            DIS            --:--   --:--
A.McKay           A.McKay               ECHELLE        23:45   00:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
--------------------------------------------------------------------
UC03/R     17:08   00:00    0   6.9   0    0    0    0    0    0
NM01/R     00:00   06:51   2.4  3.7   0    0    0   0.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist:    J.Huehnerhoff
Near end of second half the humidity dropped as the clouds approached.
Thick clouds thinning at the start of 2nd half.  After opening for a short
period and getting some science the clouds rolled in and remained thick
until it started to lightly snow at 0400MT.  Attempted cloudy night
observations but clouds too thick.
Telescope parked facing south.
                    ------- 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
--------------------------------------------------------------------------
 23:54 ECHELLE   201(-1473)  33  34  -2.4  0.7  0.1 -0.2 -0.6   clear  2.18
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    29    27     10   267    (W)     78   cloudy    humid
     17:00    29    27     11   251  (WSW)     95   cloudy    humid
     18:00    29    27     12   229   (SW)    209   cloudy    humid
     19:00    28    25     11   246  (WSW)    401   cloudy    humid
     20:00    28    25      9   246  (WSW)    457   cloudy    humid
     21:00    28    26     14   229   (SW)    384   cloudy    humid
     22:00    28    25     12   258  (WSW)    305  ptly cldy  humid
     23:00    27    25     14   270    (W)    263  ptly cldy  humid
     00:00    28    24     11   270    (W)    185 mstly clr    none
     01:00    29    21     20   272    (W)    145   cloudy     none
     02:00    29    18     19   276    (W)     84   cloudy    humid
     03:00    30    19     22   271    (W)     99   cloudy   lt snow
     04:00    29    26     17   276    (W)    287   cloudy   lt snow
     05:00    29    26     18   266    (W)    252   cloudy    humid
     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: 2.14.0
    Current TUI version: 1.8.4