From: "Noel Camron Hastings"
Subject: 3.5m Night Log 20020429
Date: Tue, 30 Apr 2002 05:14:32 -0600
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                          Monday, April 29, 2002
                                                           ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 G.Wallerstein  G.Wallerstein           Echelle        19:30  04:30
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 UW09/R      20:41  05:21   0   1.4   0    0   2.3  5.0   0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: Noel Camron Hastings
 I opened tonight at 18:45 MDT to begin cooling. There was a lot of dust
 in the valley and high winds with cirrus. Dust levels rose rapidly near
 20:30 MDT but remained just below limits.
 Smoke was noticed at around 04:00 MDT. I checked and could not find a
 visible source, but called the sheriff's office anyway. No fires were
 reported, but the smell was obvious and correlated with a sudden spike
 in the 0.3 micron dust counts. The clouds also became too thick to
 observe effectively, so I closed at 04:30 MDT.
 The smoke smell dissipated some, but was somewhat present when I left
 the site.
                        ------- FAILURE LOG -------
 PROG   INST       FAILURE      TIME
        S/E/G/D/O  TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
 UW09   E/I/S               --:--  --:--   No lost time, echslit ICC failed
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 20:35  Echelle    423(449)    67  56  13.9/14.7   285  16  clear 1.35
 21:04  Echelle    132(182)    45  44  13.7/14.4   278  16   ND2  1.11
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    65    21     21   259  (W)      788   cirrus     none
     17:01    61    17     16   263  (W)      759   cirrus     none
     18:01    60    18     14   253  (WSW)    764   cirrus     none
     19:01    59    16     20   252  (WSW)    823   cirrus     none
     20:01    58    18     16   280  (W)      913   cirrus     none
     21:01    57    19     13   276  (W)     1772   cirrus     none
     22:01    56    18     11   270  (W)     1095   cirrus     none
     23:01    57    19     14   297  (WNW)    906   cirrus     none
     00:01    56    18     13   270  (W)      772   cirrus     none
     01:01    54    17     13   295  (WNW)    911   cirrus     none
     02:01    54    15      8   284  (WNW)    709   cirrus     none
     03:01    53    17     11   282  (WNW)    791   cirrus     none
     04:01    53    21     13   271  (W)      938   cirrus    smoke
     05:01    53    21     16   266  (W)      802   cirrus     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: 2.6.3