From: Russet McMillan
Subject: 3.5m Night Log 20011112
Date: Tue, 13 Nov 2001 05:24:06 -0700 (MST)
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                        Monday, November 12th, 2001
                                                           ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 W.Zheng       W.Zheng,K.Chieu         DIS-Low         20:53   23:50
               Z.Tsvetanov
 M.Strauss     X.Fan                   DIS-Low         23:52   00:25
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 JH03/R      17:59  00:00  2.9   0    0    0   3.1   0    0    0    0
 PU02/R      00:00  05:36  4.2  1.0   0    0   0.4   0    0    0    0
   note: scheduled times listed include instrument change time
                  ------------- FAILURE LOG -------------
 PROG/INST  FAILURE MODE     TIME
 S/E/G/D/O  T/I/U-S/H    START  FINISH    DESCRIPTION
 --------------------------------------------------------------------
                  ------------- ACTIVITY LOG --------------
 First Half Observing Specialist: C.Hastings
 I opened the enclosure to cool for a while, then closed due to the
 thick cirrus clouds. The first half program worked on cals, then I
 decided to open at 20:50 when clouds abated some. The seeing was
 excellent, as the focus shows.
 Second Half Observing Specialist: R.McMillan
 After a brief period of clear skies, cirrus moved in shortly before
 midnight. The clouds thickened rapidly during second half, making
 even the brightest of the observers' targets unreachable midway
 through their first exposure.  We closed when Jupiter became
 invisible, and for the remainder of the night we got no usable
 weather.
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM
 ----------------------------------------------------------------------
 21:02  DIS Slit     -75(547) 204 56    7.6/7.8   180  11  none   0.97"
 21:07  NA2 Gdr  -1994(55004) 205 56    7.5/7.8   181  11    R    0.82"
 23:57  DISslit   25(779)     72  36    7.1/7.6   244  11   -     1.5
 23:58  NA2gdr    1768(58768) 72  37    7.1/7.6   244  11   R     1.19
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    49    28      8   261  (W)      358  mstly cldy   none
     17:01    46    27     11   229  (SW)     351  mstly cldy   none
     18:01    45    26     10   213  (SSW)    366  mstly cldy   none
     19:01    45    28      7   208  (SSW)    445  mstly cldy   none
     20:01    46    25     10   178  (S)      430  mstly cldy   none
     21:01    46    17     12   179  (S)      233  ptly cldy    none
     22:01    46    20     10   181  (S)      314  mstly clr    none
     23:01    46    19      8   189  (S)      294   clear       none
     00:01    45    12     12   245  (WSW)     90  ptly cldy    none
     01:01    47    19     11   264  (W)      149  mstly cldy   none
     02:01    46    17      9   219  (SW)     145  mstly cldy   none
     03:01    46    22     11   218  (SW)     146  mstly cldy   none
     04:01    46    19     13   231  (SW)     124  mstly cldy   none
     05:01    45    19     14   232  (SW)      84  mstly 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 Ctrlv4.1b2. Current TCC version: 2.5.5
   Current MC version: v1_7_3.