From: Russet McMillan
Subject: 3.5m Night Log 20020327
Date: Thu, 28 Mar 2002 04:03:23 -0700 (MST)
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                         Wednesday, March 27, 2002
                                                           ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 B.Gillespie   R.McMillan,J.Davis      NA2 guider      19:30  20:00
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 EN01/O      19:14  05:03   0   9.3   0    0    0   0.5   0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Thick high clouds prevented almost all on-sky engineering tonight.
 By pointing directly at the full moon, we were able to confirm that
 the new baffling causes only minimal vignetting at the very top of
 the guider, but we couldn't test the effectiveness of the baffles in
 abating scattered light with pinhole tests.  Even a pointing model,
 the least weather-sensitive of the tasks scheduled for the night,
 turned out to be impossible.  Some software work and testing was
 accomplished while the telescope was closed.
                   ------- FAILURE LOG -------
 PROG/INST  FAILURE MODE     TIME
 S/E/G/D/O     TI/SHU    START  FINISH    DESCRIPTION
 -----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 --------------------------------------------------------------------
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    55     9     13   262  (W)      815   cirrus     none
     17:01    51     5     23   254  (WSW)    820  mstly cldy  none
     18:01    48     2     21   242  (WSW)    879  mstly cldy  none
     19:01    48     2     22   237  (WSW)    852    cloudy    none
     20:01    47     1     13   254  (WSW)    774    cloudy    none
     21:01    49     3     13   264  (W)      686    cloudy    none
     22:01    49     3     14   273  (W)      841    cloudy    none
     23:01    48     2     10   259  (W)      793    cloudy    none
     00:01    47     1      8   246  (WSW)    943    cloudy    none
     01:01    47     1      7   264  (W)      970    cloudy    none
     02:01    47     2      8   266  (W)      933    cloudy    none
     03:01    46     1     10   288  (WNW)    818    cloudy    none
     04:01    46     0     10   296  (WNW)    541    cloudy    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: 2.82
   Current guide software version: GIm Ctrlv4.1b2
   Current TCC version: 2.5.5   Current MC version: tmc
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