From: Russet McMillan
Subject: 3.5m Night Log 20020121
Date: Tue, 22 Jan 2002 06:30:16 -0700 (MST)
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                         Monday, January 21, 2002
                                                           ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 D.York        B.McCall                Echelle         18:15  00:02
 J.Frieman     D.Johnston              DIS-low         03:00  05:50
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 UC01/R      18:22  00:10   0   1.4   0   2.1   0   2.3   0    0    0
 UC06/R      00:10  06:07  2.1  0.7   0    0   3.1   0    0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: J.Barentine
 Substituting for Camron, I opened the enclosure around 17:00 to cool; the
sky which had been clearer earlier in the day had started to fill with
moderately dense cirrus.  By dark it covered most of the sky.  The
observer initially thought something was wrong with the instrument when he
could not see a magnitude 1.7 star in a part of the sky that seemed to be
reasonably clear.  Turns out I had the wrong pointing model running.
Russet showed up at about 22:00 and fixed it, and the observer found stars
again.  Some time was lost to clouds, however.
 2nd Half Observing Specialist: R.McMillan
 The echelle observations went peacefully until thicker clouds moved
 in shortly before midnight; the observer finished up his time with
 calibrations while we watched the clouds gather.  There was some
 remote possibility of precipitation, so I closed soon after the
 changeover.  The telescope was re-opened before 02:00, but the
 weather didn't become usable until about 03:00.  After that,
 everything went well.
                   ------- FAILURE LOG -------
 PROG/INST  FAILURE MODE     TIME
 S/E/G/D/O     TI/SHU    START  FINISH    DESCRIPTION
 --------------------------------------------------------------------
 UC01/E        T/S       18:22   20:30    Wrong pointing model in use
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 00:16  DISslit     0(367)    268  82    1.4/1.2   253  14   -    1.25
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    42    -1      3   266  (W)      158  PtlyCldy    none
     17:01    37    -6      5   256  (WSW)    175  PtlyCldy    none
     18:01    38    -1     10   267  (W)        8  PtlyCldy    none
     19:01    35    -5     10   221  (SW)     119  PtlyCldy    none
     20:01    34   -13      9   194  (SSW)    186  PtlyCldy    none
     21:01    36   -19     14   244  (WSW)    123  PtlyCldy    none
     22:01    35   -16     11   254  (WSW)     53 MstlyClear   none
     23:01    35   -10     18   254  (WSW)     91 MstlyClear   none
     00:01    35    -4     17   289  (WNW)    163  ptly cldy   none
     01:01    34    -1     13   246  (WSW)    179  mstly cldy  none
     02:01    33     6     12   265  (W)      256  mstly cldy  none
     03:01    33     4     19   267  (W)      283  ptly cldy   none
     04:01    31     5     14   267  (W)      300  mstly clr   none
     05:01    31     6     16   257  (WSW)    308  mstly clr   none
     06:01    32     6     17   270  (W)      262  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: 2.5.5
   Current MC version: v1_7_3.