From:
Subject: 3.5m Night Log 20100417
Date: Sun, 18 Apr 2010 11:43:28 +0000 (UTC)
                       Apache Point Observatory
                       3.5m Telescope Night Log
                       Saturday, April 17, 2010
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 A.Mukadam       A.Mukadam              Agile          --:--  --:--
 R.Reyes         R.Reyes                DIS            --:--  --:--
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 -----------------------------------------------------------------
 UW07/R     19:43  01:10   1.9  3.5   0    0    0    0    0    0
 PU03/R     01:10  06:22   5.2   0    0    0    0    0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 We were unable to open tonight because of high humidity.  A couple
 of times it dropped to a maybe-usable range, but I was nervous
 because the 3.5m dewpoint sensor (listed below) was not working
 properly and so I was relying on the 2.5m sensor, further from our
 telescope.  The periods of lower humidity coincided with some
 clouds, anyway.
 I checked the DIS spectrograph focus and found it good on both blue
 and red.  I had some trouble with Agile during checkout because
 apparently someone had aborted a sequence a few days ago, and either
 the instrument was already locked up or my first camera command
 locked it up.  Many resets and ICC restarts were required.  Although
 we have a valid workaround, the bug following Agile aborts is quite
 annoying if a mistake should be made; in this case, it took about 40
 minutes to get the instrument communicating again.
                     ------- 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
 --------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    45    32     11   322   (NW)    617   cloudy     none
     17:00    45    32      8   281    (W)    578   cloudy     none
     18:00    43    31      9   271    (W)    627 mstly cldy   none
     19:00    42    31      5   288  (WNW)    658 mstly cldy   none
     20:00    40    32     10   273    (W)  12930 mstly cldy   fog
     21:00    39    32      1   246  (WSW)    689 mstly cldy   fog
     22:00    40    32      2   316   (NW)   5891 mstly cldy   fog
     23:00    39    32      4    10    (N)    648  ptly cldy   none
     00:00    39    32      7   351    (N)    736  ptly cldy   none
     01:00    38    31      2     6    (N)    785  ptly cldy   none
     02:00    39    31      6     2    (N)    824  ptly cldy   none
     03:00    39    31     10     3    (N)    867  ptly cldy   none
     04:00    39    31      6   357    (N)    735  ptly cldy   none
     05:00    39    31      7   355    (N)    755  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: 2.11.1
     Current TUI version: TUI 1.7.1