From: Russet McMillan
Subject: 3.5m Night Log 20010503
Date: Fri,  4 May 2001 05:57:25 -0600 (MDT)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                         Thursday, May 3rd, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 T.Harrison    T.Harrison              DIS-High        --:--  --:--
 D.York        D.York, B.McCall,       Echelle         --:--  --:--
               G.Gyuk, T.Oka,
               S.Friedman, P.Sonnentrucker
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM03/R      20:45 01:00    0   4.3   0    0    0    0    0    0    0
 UC04/O      01:00 05:15   0.6  3.7   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist 1st Half: Noel Camron Hastings
    Heavy cloud cover kept us closed. Recalibrated both sets of gratings.
Installed new version of Remark for testing (2.72)
 Observing Specialist 2nd Half: Russet McMillan
 Clouds continued during second half, along with a dust event.  A
 violent storm developed not far east of the observatory, but moved
 away from us and we never received any rain.  Each time I checked,
 the handheld dust counter gave a measurement nearly twice as high as
 the tower dust counter.  The dust never dropped low enough to allow
 us to open before twilight, so I did some tests with the echelle
 slitviewer instead.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    58    10     19   193  (SSW)   2330   cloudy     none
     17:01    60    10     25   235  (SW)    2054   cloudy     none
     18:01    57    13     30   212  (SSW)   2081   cloudy     none
     19:01    54    16     23   204  (SSW)   1691   cloudy     none
     20:01    52    16     17   207  (SSW)   2000   cloudy     none
     21:01    53    17     14   184  (S)     1780   cloudy     none
     22:01    50    10      6   190  (S)     2866   cloudy     none
     23:01    49     9      6   283  (WNW)   2749   cloudy     none
     00:01    47    11      1   349  (NNW)   2857   cloudy     none
     01:01    46    16      5   356  (N)     3098   cloudy     none
     02:01    42    20      8   291  (WNW)   8201  ptly cldy   none
     03:01    41    24     14   309  (NW)    5034  ptly cldy   none
     04:01    40    24     18   287  (WNW)   2912  ptly cldy   none
     05:01    38    22      9   295  (WNW)   2968  ptly 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.
                              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: 2.62. Current
  guide software version: GIm Ctrlv3.0b27. Current TCC version: 2.5.1
  Current MC version: v1_7_3.