Subject: 3.5m Night Log 20171203
From: mcmillan@apo.nmsu.edu
Date: Mon,  4 Dec 2017 13:26:01 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, December 03, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Bentz           M.Batiste             DIS            17:06   18:04
R.Wyse            K.Hawkins             ECHELLE        18:06   00:10
D.Chojnowski      D.Chojnowski          ECHELLE        00:10   00:40
B.Morris          B.Morris              ECHELLE        00:40   06:05
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
GS01/R     17:06   18:06    0    0    0    0   0.3  0.7   0    0
JH03/R     18:06   00:10    0    0    0    0   0.0  6.1   0    0
NM05/R     00:10   00:40    0    0    0    0   0.0  0.5   0    0
UW09/R     00:40   06:42    0    0    0    0   0.0  6.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Clouds off and on, but still observable even at the worst, and there were some periods of clear sky.
Bill and Ed got the tertiary mirror fixed by mid-afternoon.  I was prepared for a possible change in pointing, but in fact it was excellent and didn't even need a tweak.  Ecam needed a power cycle at the beginning of the night and showed horizontal trails from shutter lag in the first few exposures, but after that it behaved well (both shutter and readout) for thousands of images.
                    ------- 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
--------------------------------------------------------------------------
 17:28 dcamera    350(  452)  25  49   5.7  7.6  8.0  7.4  5.9   -  1.16
 18:30 ecamera    288( -562) 176  63   5.6  5.8  6.6  5.6  5.4   ND3  0.87
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    46    25     16   251  (WSW)   1177  ptly cldy   none
     17:00    42    24     13   264    (W)    940  ptly cldy   none
     18:00    42    24     15   259    (W)   1085  ptly cldy   none
     19:00    42    25     20   268    (W)   1104  ptly cldy   none
     20:00    41    25     22   256  (WSW)    690 mstly clr    none
     21:00    40    26     16   258  (WSW)    695  ptly cldy   none
     22:00    41    26     21   273    (W)    619  ptly cldy   none
     23:00    40    26     17   283  (WNW)    415  ptly cldy   none
     00:00    39    27     10   283  (WNW)    519 mstly clr    none
     01:00    39    27     18   290  (WNW)    512 mstly clr    none
     02:00    39    27     22   295  (WNW)    607    clear     none
     03:00    39    27     24   268    (W)    579    clear     none
     04:00    38    27     26   277    (W)    567  ptly cldy   none
     05:00    37    27     25   282  (WNW)    501  ptly cldy   none
     06:00    37    26     26   289  (WNW)    530  ptly cldy   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