Subject: 3.5m Night Log 20160929
From: mcmillan@apo.nmsu.edu
Date: Fri, 30 Sep 2016 11:13:34 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, September 29, 2016
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
D.Chojnowski      D.Chojnowski          ECHELLE        19:30   20:45
D.York            D.York                ECHELLE        --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
NM06/R     18:58   01:10   4.4   0    0    0   1.8  0.0   0    0
UC01/R     01:10   06:49   5.3  0.3   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
It was clear and we were able to open before sunset, but clouds started moving in during twilight and quickly got thicker.  The observer was able to continue for a while until he ran out of bright stars in his target list.  During second half, the rain finally arrived and there was no chance of re-opening.
A network problem in the dome disrupted the reporting of telescope temperatures, which made it difficult to focus initially.  When the temperature reporting was restored I redid the focus, but then I struggled with clouds.
                    ------- 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
--------------------------------------------------------------------------
 19:25 ecamera    902(    3)  -1  42   9.9 602.0 602.0 602.0 602.0   ND3  1.50
 20:52 ecamera    875( -172) 342  49   9.3  9.7 10.4  9.6  9.4   Clear  1.74
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    62    39      9   272    (W)    434    clear     none
     17:00    57    39     16    74  (ENE)    496    clear     none
     18:00    54    38     15    81    (E)    499    clear     none
     19:00    51    37     13    87    (E)    464 mstly clr    none
     20:00    49    37     15    80    (E)    502  ptly cldy   none
     21:00    49    37     11    88    (E)    525 mstly cldy   none
     22:00    51    34      9   178    (S)    383 mstly cldy   none
     23:00    53    31     10   135   (SE)    277 mstly cldy   none
     00:00    53    27      6   182    (S)    242   cloudy     none
     01:00    53    24      3   227   (SW)    146   cloudy     none
     02:00    47    39     18    10    (N)    589   cloudy   lt rain
     03:00    44    41     15    28  (NNE)          cloudy   lt rain
     04:00    45    42      9    43   (NE)          cloudy   lt rain
     05:00    45    42     10    49   (NE)          cloudy   lt rain
     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