From:
Subject: 3.5m Night Log 20110123
Date: Mon, 24 Jan 2011 13:14:37 +0000 (UTC)
                       Apache Point Observatory
                       3.5m Telescope Night Log
                       Sunday, January 23, 2011
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
R.Hamilton        R.Hamilton            TSPEC          18:00   23:10
W.Ketzeback       R.McMillan            Tspec          23:10   00:15
Y.Shen            Y.Shen                Triplespec     00:15   06:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
--------------------------------------------------------------------
NM03/R     17:36   23:10    0    0    0    0   4.5  1.0   0    0
NM05/R     23:10   00:10    0    0    0    0   0.0  1.0   0    0
PU08/R     00:10   06:54    0    0    0   0.1  0.0  6.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist:    R.McMillan
Mostly clear with good seeing.  As usual, Triplespec required a little
extra attention to guiding, but nothing extreme.  The rotator had a
motion error at UT 09:06 when trying to move from approximately -90 to
-180.  I woke it up and tried again, with the same result, but the
observer was willing to observe at a more convenient position so I didn't
pursue further diagnosis.  The error code was 6801, not an overcurrent.
No other problems with the rotator during the night.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
PU03     T        T/H      02:06  02:12   Rot motion error
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 19:11 ECHELLE  77(-1576) -159  61   2.2  1.9  2.1  1.4  1.8   Clear 0.75
 23:16 TSPEC   100( -627) -122  59  -3.8 -4.8 -4.2 -5.0 -4.5   Ks  0.88
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    28    17      3   303  (WNW)    644    clear     none
     17:00    28    17      6   302  (WNW)    849    clear     none
     18:00    25    14      6   283  (WNW)    469    clear     none
     19:00    25    12     13   331  (NNW)    300    clear     none
     20:00    24     9     14   336  (NNW)    348    clear     none
     21:00    24    11     11   343  (NNW)    270    clear     none
     22:00    24     9     10   355    (N)    265    clear     none
     23:00    24     9      8   359    (N)    251    clear     none
     00:00    24     9     15   354    (N)    301    clear     none
     01:00    24    11      6     0    (N)    270    clear     none
     02:00    24    11     11   347  (NNW)    257    clear     none
     03:00    23    11      9    42   (NE)    268    clear     none
     04:00    25     2      1   208  (SSW)    219 mstly clr    none
     05:00    22     9     12   315   (NW)    267    clear     none
     06:00    22    10      7   307   (NW)    224    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: 2.14.0
    Current TUI version: 1.8.5