Subject: 3.5m Night Log 20171212
From: mcmillan@apo.nmsu.edu
Date: Wed, 13 Dec 2017 13:49:56 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, December 12, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Bentz           M.Bentz               DIS            17:18   18:04
D.Bizyaev         D.Bizyaev             DIS            18:11   00:04
D.Chojnowski      R.McMillan            ECHELLE        00:08   00:40
R.Wyse            K.Hawkins             ECHELLE        00:40   06:12
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
GS01/R     17:07   18:07    0    0    0    0   1.0  0.0   0    0
NM06/R     18:07   00:10    0    0    0    0   6.1  0.0   0    0
NM05/O     00:10   00:40    0    0    0    0   0.5  0.0   0    0
JH03/R     00:40   06:48    0    0    0    0   1.9  4.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
During checkout I noticed a minor issue with azimuth slew timing and fixed it.  And then when we got on sky I realized I had just accidentally fixed the pointing problem that started last Friday - except now I had to undo all the workarounds that we had put in place to deal with that problem.  Fortunately I was able to get pointing re-restored by the time it was dark enough to focus, and no time was lost.
After that, everything went beautifully, with clear skies and good seeing and no problems.  Even ARCSAT was delivering science.
                    ------- 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
--------------------------------------------------------------------------
 18:25 arctic   561(  646) -63  35   4.1  4.2  4.4  4.0  4.0   SDSS_r  1.02
 00:38 ecamera    240( -767)  29  51   2.9  2.7  3.2  2.4  2.4   ND1  1.18
              ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    38     5      3   243  (WSW)    864    clear     none
     17:00    38     6      0    60  (ENE)    857    clear     none
     18:00    40    -6      8    39   (NE)    159    clear     none
     19:00    42    -1      4   178    (S)    474    clear     none
     20:00    42     4      4   184    (S)    684    clear     none
     21:00    41    -1      5   186    (S)    357    clear     none
     22:00    40    -2      6   197  (SSW)    377    clear     none
     23:00    41    -3      5   203  (SSW)    222    clear     none
     00:00    37    -9      5   348  (NNW)    103    clear     none
     01:00    40    -7      5   263    (W)    137    clear     none
     02:00    38    -7      2   317   (NW)    105    clear     none
     03:00    38    -8     10   306   (NW)     98    clear     none
     04:00    38    -8     12   301  (WNW)     52    clear     none
     05:00    38    -2     10   303  (WNW)     27    clear     none
     06:00    37    14     13   342  (NNW)     35    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