Date: Sun, 25 Dec 2011 12:54:34 -0000 (UTC)
Subject: 3.5m Night Log 20111224
From: mcmillan@apo.nmsu.edu
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, December 24, 2011
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
D.York            S.Johnson             DIS            23:00   23:58
A.Mukadam         A.Mukadam             Agile          00:04   03:00
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UC01/R     17:12   00:00   5.6  0.2   0    0   1.0  0.0   0    0
UW01/R     00:00   06:55   3.9   0    0    0   3.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Very light snowfall in the afternoon and early evening, gradually dying
down, but then the wind picked up.  With snow on the dome but no ice, and
a very cold telescope, we had no special wind limit, but even the normal
wind limit was a problem for a while.  Finally we had a combination of
lower winds and mostly clear skies so we were able to open for a while.
Seeing was bad at first, eventually coming down to more moderate numbers
but never good.  Everything worked well except that the shutter doors made
dreadful squeaky noises on opening that made me nervous - fortunately
there was no problem closing when the wind picked up again and too much
snow started getting into the dome.
                    ------- 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
--------------------------------------------------------------------------
 00:10 dis-slit   400( -660) -47  47  -8.6 -7.5 -7.2 -7.3 -8.7   -  2.50
 01:15 AGILE -1125(-2713)  57  83  -8.6 -8.5 -8.2 -8.6 -8.8   BG40  1.20
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    18    14     21    58  (ENE)    740 mstly cldy lt snow
     17:00    16    13     14    56   (NE)    646 mstly cldy lt snow
     18:00    16    11     19    92    (E)    541  ptly cldy lt snow
     19:00    16    10     36    71  (ENE)    705  ptly cldy   none
     20:00    16     5     26    63  (ENE)    406  ptly cldy   none
     21:00    16     0     19    70  (ENE)    245  ptly cldy   none
     22:00    17    -6     21    63  (ENE)    315  ptly cldy   none
     23:00    16    -2     20    55   (NE)    327  ptly cldy   none
     00:00    16     2     24    58  (ENE)    346 mstly clr    none
     01:00    17     5     24    46   (NE)    275 mstly clr    none
     02:00    15     8     20    57  (ENE)    304    clear     none
     03:00    17     8     32    54   (NE)    357    clear     none
     04:00    19     8     31    49   (NE)   1065    clear     none
     05:00    19     7     35    59  (ENE)    374 mstly clr    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: 2.15.0
    Current TUI version: 1.9.4