From: Russet McMillan
Subject: 3.5m Night Log 20010617
Date: Mon, 18 Jun 2001 05:23:42 -0600 (MDT)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                        Sunday, June 17th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 P.Szkody      S.Raymond               DIS-High        22:35  23:45
                                                       01:50  05:05
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 UW06/R      21:17  04:51  3.4   0    0    0   3.1  1.1   0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: Russet McMillan
 There was a thunderstorm shortly before sunset, and opening was
 delayed by other nearby rain.  When we did open, thin clouds
 persisted and the seeing was mediocre (1.3-2.0 arcsec).  A large and
 very sudden dust spike caused us to close for the middle of the
 night, but we reopened for more mediocre seeing and mostly clear
 skies until twilight.  Everything worked well aside from two guider
 failures, both easily recovered.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 22:46  DISslit    -100(1155)  286 64  13.5/15.1  145  21   -     1.46
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     18:01    64    37      8   228  (SW)    1086   cloudy     none
     19:01    57    40     10   139  (SE)    1238   cloudy    rain,hail
     20:01    59    39     10   110  (ESE)   1267 mstly cldy  lt. rain
     21:01    58    38     12   132  (SE)    1110 mstly cldy   none
     22:01    57    40      7   115  (ESE)   1386  ptly cldy   none
     23:01    56    40     19   132  (SE)     562  ptly cldy   none
     00:01    53    43     17   129  (SE)   12032  mstly clr   dust
     01:01    54    43     16   136  (SE)    8914   clear      dust
     02:01    53    43     20   149  (SSE)   1885  mstly clr   none
     03:01    52    44     10   172  (S)     1590  ptly cldy   none
     04:01    54    43     11   178  (S)     1090  mstly clr   none
     05:01    54    45      8   183  (S)     1545  mstly clr   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 Ctrlv4.1b2. Current TCC version: 2.5.3
  Current MC version: v1_7_3.