Date: Sun, 1 Jan 2017 13:05:48 -0000 (UTC)
Subject: 3.5m Night Log 20161231
From: mcmillan@apo.nmsu.edu
                     Apache Point Observatory
                     3.5m Telescope Night Log
                    Saturday, December 31, 2016
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
B.Morris         B.Morris,L.Hebb        ECHELLE        --:--   --:--
M.Hammergren     K.Nault,M.Brucker      ARCTIC         --:--   --:--
K.Pan            H.Yan                  ECHELLE        --:--   --:--
  INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
----------------------------------------------------------------
UW13/R     17:17   23:10   3.5  2.4   0    0   0.0  0.0   0    0
AD02/R     23:10   01:10   2.0  0.0   0    0   0.0  0.0   0    0
NM06/R     01:10   06:57   5.8   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
             ------------- ACTIVITY LOG --------------
Observing Specialist: R. McMillan
Night log composed by hand because of trouble with the machine that has
the script on it.
Closed all night for freezing fog, along with slushy snow on the telescope
dome.  I moved the telescope to different positions relative to the wind
during the night, and took DIS images to check progression of
contamination.
We confirmed that ARCTIC image headers dealt with the leap second
reasonably, although we weren't taking images at the time of the leap
second so not sure how that would have turned out.
                   ------- 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 F Dewp F  MPH  Direction    Dust    Sky    Conditions
   ------------------------------------------------------------------
     16:00    31    31     17   255  (WSW)          cloudy     snow
     17:00    31    31     20   268    (W)          cloudy     snow
     18:00    30    30     18   273    (W)          cloudy     fog
     19:00    30    30     22   253  (WSW)          cloudy     fog
     20:00    30    30     16   235   (SW)          cloudy     fog
     21:00    29    29     22   242  (WSW)          cloudy     fog
     22:00    29    28     22   257  (WSW)          cloudy     fog
     23:00    28    28     14   256  (WSW)          cloudy     fog
     00:00    28    27     19   290  (WNW)          cloudy     fog
     01:00    28    27     16   266    (W)          cloudy     fog
     02:00    28    27     14   264    (W)          cloudy     fog
     03:00    28    27     12   269    (W)          cloudy     fog
     04:00    28    27      8   231   (SW)          cloudy     fog
     05:00    28    27     16   264    (W)          cloudy     fog
     06:00    29    28     13   235   (SW)          cloudy     fog
	    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: 1.2.2
   Current TUI version: 2.6.0