Date: Wed, 24 Sep 2003 03:35:48 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20030923
                         Apache Point Observatory
                         3.5m Telescope Night Log
                        Tuesday, September 23, 2003
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 B.Moorthy      B.Moorthy               SPIcam         19:20  22:20
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM04/R      19:52  05:59  6.8  0.9   0    0   2.5    0    0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Even with tropical "disturbance" Marty the clouds started to part from
 APO around 18:00.  I started cooling and eventually opened the enclosure
 (after doing DIS cals) around 19:05.  The observer had some problems
 logging into SPIcam so I started their flat fields for them.  I got 2
 finished and they took control again.  They still were having problems
 (this time with file permissions) and I took control of SPIcam again to
 try and salvage what was left of twilight now.  Unfortunately it was a
 bit too dark so I proceeded to focus SPIcam.
 At 22:20 we went to switch to DIS, but the humidity was right on the edge
 of closure so I opted to close at this time as well.  I switched the
 instruments and when I came back down we were over our closure limits
 with humidity for the 3.5m, as expected.
 Fog moved in sometime around midnight and pretty much stayed that way for
 the rest of the night.  I threw in the towel around 03:30 when it looked
 pretty hopeless for the remainder of the night.
                     ------- FAILURE LOG -------
 PROG   INST   FAILURE MODE     TIME
      (SEGDFVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 19:52  SPIcam     -170(1112) 106  76   11.8/14.4  180   2    V    0.92
 20:01  NA2guider 2690(51690) 109  77   11.6/14.0  176   2    R    1.24
                 -------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     17:01    62    43      4   186  (S)      188   Pt. Cldy   none
     18:01    57    45      6   188  (S)      195   Pt. Cldy   none
     19:01    55    46      6   193  (SSW)    184   Pt. Cldy   none
     20:01    53    46      2   147  (SSE)    201   Pt. Cldy   none
     21:01    52    47      1   115  (ESE)    235   Pt. Cldy   none
     22:01    53    48      7   212  (SSW)    190   Pt. Cldy   none
     23:01    52    48      8   187  (S)      165   Pt. Cldy   none
     00:01    52    49     10   233  (SW)     120    Cloudy    fog
     01:01    52    51      9   203  (SSW)   4434    Cloudy    fog
     02:01    52    51      7   214  (SW)     580    Cloudy    fog
     03:01    51    51      9   217  (SW)    1003    Cloudy    fog
   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 Remark version: 2.85b
   Current guide software version: ?
   Current TCC version: 2.7.1  Current TUI version: TUI-0.67+