Subject: 3.5m Night Log 20151213
From: cgray@apo.nmsu.edu
Date: Mon, 14 Dec 2015 13:10:01 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, December 13, 2015
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
S.Anderson        S.Anderson            DIS            --:--   --:--
M.Hammergren      K.Nault, M.Brucker    ARCTIC         --:--   --:--
S.Anderson        S.Anderson            DIS            --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UW03/R     17:07   23:10   3.6  2.4   0    0    0    0    0    0
AD02/R     23:10   01:10   2.0   0    0    0    0    0    0    0
UW03/R     01:10   06:49   5.6   0    0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
tspec was good - took 1500 darks
I tried opening the dome at 17:36 and was open only 8 min before the wind started gusting too strong, so I closed again at 17:44.  We were not able to open tonight due to blowing snow from high winds.
ARCTIC biases looked normal but when AD02 took flats the exposures were saturated.  We checked that no other lights were on, only the dim quartz and checked the position of the filters.  Eventually we found that the issue was due to the shutter not closing. We started the icc twice and the exposures were all 0.  We tried power cycling and, while the chip did read out properly, the shutter continued to not close.
                    ------- 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 C Dewp C  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    23    15     16    24  (NNE)    124    clear     none
     17:00    24    14      4   337  (NNW)     93    clear     none
     18:00    27    10     15   352    (N)    135    clear     none
     19:00    28     9     14    32  (NNE)    161    clear     none
     20:00    28     9     21   350    (N)    232    clear     none
     21:00    28     9     15   351    (N)    123    clear     none
     22:00    30     9      4    13  (NNE)    137    clear     none
     23:00    29     9     12   344  (NNW)     72    clear     none
     00:00    31    10     17   327  (NNW)     50    clear     none
     01:00    31    14     15   333  (NNW)     31    clear     none
     02:00    33    16     12   306   (NW)     22    clear     none
     03:00    35    14      9   270    (W)     14    clear     none
     04:00    35    12     12   263    (W)     40    clear     none
     05:00    34     6     16   263    (W)     46    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: 1.0.4
    Current TUI version: 2.5.0