Subject: 3.5m Night Log 20160416
From: mcmillan@apo.nmsu.edu
Date: Sun, 17 Apr 2016 12:28:58 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 16, 2016
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Hammergren      K.Nault,G.Gyuk        DIS            21:35   00:10
M.Hammergren      K.Nault,G.Gyuk        DIS            00:10   02:10
Z.Ivezic          P.Yoachim             ARCTIC         02:20   06:10
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
AD01/R     19:43   00:10    0   1.9   0    0   0.0  2.6   0    0
AD02/R     00:10   02:10    0    0    0    0   0.0  2.0   0    0
UW02/R     02:10   06:22    0    0    0    0   2.2  2.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
The night started with heavy clouds and several waves of graupel, but after sunset the precipitation and clouds cleared out surprisingly quickly.  After that the night was photometric and productive, with variable seeing.
                    ------- 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
--------------------------------------------------------------------------
 21:40 dcamera    200( -237)  85  59  -0.3  1.1  2.5  1.1  0.2   -  1.18
 02:31 arctic   550(  165) -57  37  -0.3 -1.0 -0.4 -0.9 -0.9   r  1.75
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    38    19     23   210  (SSW)    950 mstly cldy   none
     17:00    37    18     28   260    (W)    892 mstly cldy   none
     18:00    36    19     25   242  (WSW)    813   cloudy   lt snow
     19:00    35    19     18   267    (W)    795   cloudy   lt snow
     20:00    31    24      6   340  (NNW)   1994  ptly cldy   none
     21:00    32    21     18   283  (WNW)    573 mstly clr    none
     22:00    31    21     18   295  (WNW)    423    clear     none
     23:00    31    22     16   325   (NW)    208    clear     none
     00:00    31    22      6   355    (N)    119    clear     none
     01:00    31    21     13   317   (NW)    134    clear     none
     02:00    31    22     10   350    (N)    207    clear     none
     03:00    30    20     13    56   (NE)    240    clear     none
     04:00    32    15      4   249  (WSW)    485    clear     none
     05:00    32    20      1   258  (WSW)    318    clear     none
     06:00    31    19      6   192  (SSW)    333    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: 1.2.2
    Current TUI version: 2.5.1