From: Russet McMillan
Subject: 3.5m Night Log 20050323
Date: Thu, 24 Mar 2005 05:27:55 -0700 (MST)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Wednesday, March 23, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 A.Seth          A.Seth,K.Covey         DIS            --:--  --:--
 T.Goto          T.Goto                 NIC-FPS        --:--  --:--
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW15/W      19:11  00:10   0   5.0   0    0    0    0    0    0    0
 JH06/R      00:10  05:08   0   5.0   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 With high winds, high dust, and widespread clouds at sunset, the
 first half observers decided to go with their backup instrument.  We
 tried opening a couple of times but were foiled by weather.  The
 first attempt, from 19:55 to 20:05, revealed some bugs in the guider
 software, but the wind rode before we could even get focused.  On
 the second attempt, from 21:10 to 21:40, we confirmed that the
 guider bug had been eliminated, found a new bug, focused the
 instrument, eliminated the new guider bug, and slewed to a science
 target before having to close because of dust without obtaining any
 science.  Heavy clouds prevailed during second half, so we didn't
 open again.
 The guider software has been left in a functional but still somewhat
 buggy state.  Work on it will continue.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SEGDFNVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                 ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 21:27 DISslit     -50(918)    70  56  3.1/3.6    270  25   -     1.35
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    46    16     32   263  (W)     3025 mstly cldy  dust,wind
     17:01    44    15     31   252  (WSW)   4016 mstly cldy  dust,wind
     18:01    42    14     24   263  (W)     2974 mstly cldy    none
     19:01    40    15     28   244  (WSW)   2524 mstly cldy    none
     20:01    39    15     26   270  (W)     1693  ptly cldy    none
     21:01    38    15     29   253  (WSW)   1759  ptly cldy    none
     22:01    37    18     25   262  (W)     6059 mstly cldy  dust,wind
     23:01    36    20     26   263  (W)     4039 mstly cldy  dust,wind
     00:01    34    21     24   285  (WNW)   2235 mstly cldy    none
     01:01    33    22     16   257  (WSW)   1585 mstly cldy    none
     02:01    32    23     18   269  (W)     1043 mstly cldy    none
     03:01    31    24     15   277  (W)      999 mstly cldy    none
     04:01    31    22     15   263  (W)      863 mstly cldy    none
     05:01    30    22     18   268  (W)      714 mstly 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.
     Note: The Tower Dust counter appears to be down at this time
                              TELESCOPE STATUS
      Telescope drives operational. Current Remark version: 2.85b
      Current TCC version: 2.7.2  Current TUI version: TUI 0.94