Subject: 3.5m Night Log 20180409
From: trudyk@apo.nmsu.edu
Date: Tue, 10 Apr 2018 12:18:08 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, April 09, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
S.Anderson        S.Anderson,J.Ruan     DIS            19:45   01:00
E.Bellm           M.Graham              DIS            01:00   05:40
G.Wallerstein     C.Sakari              Echelle        05:40   06:31
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UW07/R     19:38   01:10    0    0    0    0   5.5  0.0   0    0
UW06/R     01:10   06:31    0    0    0    0   2.4  2.0   0    0
UW14/R/D   05:40   06:00    0    0    0    0   0.0  0.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started mostly clear, with high thin clouds. Dcam was shoing a lot of noise again tonight. Seeing wasn't great, but around 21:00 it took as nosedive as winds turned from the east. It was the worst seeing I've been able to measure.  Seeing improved around 02:00 but then humidity began to creep up.  It straddled the limits for about 3 hours, then started dropping off shortly before twilight.  We were open all night.
                    ------- 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
--------------------------------------------------------------------------
 20:10 dcamera    408(  671) 121  61   9.3 11.1 12.0 10.4  9.6   -  1.63
 21:43 dcamera    514(  590) 141  76   6.2  7.5  8.8  7.6  6.6   -  2.57
 00:58 dcamera    638(  456) 240  59   1.7  2.3  3.2  2.4  1.9   -  4.37
 02:57 dcamera    577(  323) 254  69   0.4  1.0  1.8  1.0  0.6   -  2.62
 05:45 ecamera    474( -632) 144  66   2.5  0.9  1.6  1.1  2.6   ND4  1.90
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    53     8      5   272    (W)   2866 mstly clr    none
     17:00    53     8     10   330  (NNW)   2972 mstly clr    none
     18:00    54     8      2   261    (W)   2736 mstly clr    none
     19:00    52     6      4   353    (N)   2804 mstly clr    none
     20:00    49    14     10    94    (E)   1992 mstly clr    none
     21:00    46    12     17    70  (ENE)   2492    clear     none
     22:00    42    23     23    76  (ENE)   2126    clear     none
     23:00    39    28     23    70  (ENE)   2037    clear     none
     00:00    37    28     23    73  (ENE)   2137    clear     none
     01:00    35    29     20    71  (ENE)   2081    clear     none
     02:00    34    28     14    89    (E)   2216    clear     none
     03:00    33    28      8    77  (ENE)           clear     none
     04:00    34    27      8    80    (E)   2403    clear     none
     05:00    35    27      8    87    (E)           clear     none
     06:00    37    22      4   186    (S)   2635    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: 1.2.4
    Current TUI version: 2.6.0