Date: Thu, 27 Mar 2003 06:13:58 -0700 (MST)
From: John Barentine
Subject: 3.5m Night Log 20030326
                         Apache Point Observatory
                         3.5m Telescope Night Log
                        Wednesday, March 26, 2003
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START FINISH
 -------------------------------------------------------------------
 B.Goldman      B.Goldman               DIS            18:42  19:37
                                                       01:05  05:40
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM03/R      19:13  05:05  5.2   0    0    0   3.0  1.7   0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: R.McMillan
 The dome was open and cooling by 18:00, and we were able to focus as
 soon as it was dark enough.  We had just gotten set up on the first
 target, however, when wind gusts began to increase and soon went over
 the limit.  We closed due to wind, and later stayed closed due to
 clouds -- high clouds that weren't actually threatening, but a bit
 too thick to observe through.
 2nd Half Observing Specialist: J.Barentine
 Conditions began to improve toward 01:00 so we opened again.  There were
a couple of waves of clouds between then and 03:00, but from then on it
was largely clear skies and mediocre seeing.
                        ------- 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
 ---------------------------------------------------------------------
 18:57 DISslit     -50(694)    60  48  7.4/7.9    249  27   -     1.56
 19:01 NA2gdr      2600(43600) 60  49  7.5/7.8    245  27   R     1.58
 01:54 DISslit     0(654)      206 53  6.7/6.4    265  28   -     1.19
 04:22 NA2gdr      2000(43000) 40  82  5.4/5.1    258  22   R     1.64
               --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    51    21     16   260  (W)      493   cirrus     none
     17:01    48    20     22   245  (WSW)    532   cirrus     none
     18:01    47    19     20   244  (WSW)    544   cirrus     none
     19:01    45    17     24   249  (WSW)    514   cirrus     none
     20:01    46    12     31   266  (W)      513   cirrus     none
     21:01    47     9     23   267  (W)      540  ptly cldy   none
     22:01    46     9     17   265  (W)      506  ptly cldy   none
     23:01    47     9     14   261  (W)      391  ptly cldy   none
     00:01    46    10     17   239  (WSW)    505  ptly cldy   none
     01:01    44    11     20   258  (WSW)    438  MstlyClr    none
     02:01    44    11     28   262  (W)      402  MstlyClr    none
     03:01    43     8     21   268  (W)      301  MstlyClr    none
     04:01    42    12     27   264  (W)      263   Clear      none
     05:01    42    13     17   264  (W)      315   Clear      none
     06:01    39    16     16   269  (W)      504   Clear      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
   Primary, secondary, and tertiary mirrors in place and collimated.
   Primary support system operational. Mirror ventilation system in
   place.
   Telescope drives operational. Current Remark version: 2.80b
   Current guide software version: GIm Ctrlv4.1b2
   Current TCC version: 2.6.8