From: Russet McMillan
Subject: 3.5m Night Log 20011226
Date: Thu, 27 Dec 2001 06:03:33 -0700 (MST)
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                      Wednesday, December 26th, 2001
                                                           ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 S.McCandliss  S.McCandliss            Echelle         17:33   00:02
 D.York        S.Friedman,             Echelle         00:03   04:00
               P.Sonnentrucker
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 JH05/R      18:02  00:00   0    0    0    0    0   6.0   0    0    0
 UC06/R      00:00  06:06  1.9  0.2   0    0    0   4.0   0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: J.Dembicky
 Started cooling fans and opened louvers around 15:45.  Opened the
 enclosure at 16:30.  The cloud cam is being pumped down tonight so no
 cloud cam images.
 Everything ran smoothly for the first half of the night.
 2nd Half Observing Specialist: Russet McMillan
 Thin cirrus showed up at the beginning of first half and gradually
 thickened.  We had good seeing at first, but it became unstable as
 the clouds got heavier.  The observers had bright targets and were
 able to continue exposing for a while, but I closed when everything
 except Jupiter disappeared.
                   ------- FAILURE LOG -------
 PROG/INST  FAILURE MODE     TIME
 S/E/G/D/O     TI/SHU    START  FINISH    DESCRIPTION
 --------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 18:23  Echelle     -81(-716) 228  58   -1.1/-0.3   24  10   ND3  0.80
 00:10  Echelle     -46(-757) 188  80   -0.6/-1.0  299  15   ND3  0.75
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    32     3      4   350  (N)       63    Clear     none
     17:01    32    -8      5     5  (N)       19    Clear     none
     18:01    29    -5      9   359  (N)       19    Clear     none
     19:01    31    -2     12   359  (N)        7    Clear     none
     20:01    31    -4      7   357  (N)       12    Clear     none
     21:01    29    -6     11   324  (NW)      21    Clear     none
     22:01    30    -5     11   292  (WNW)     20  Mst. Clr    none
     23:01    31    -5     12   284  (WNW)     22    cirrus    none
     00:01    30    -3     13   290  (WNW)     26    cirrus    none
     01:01    31    -4      6   261  (W)       39    cirrus    none
     02:01    29    -7     11   271  (W)       14   ptly cldy  none
     03:01    28    -7      8   265  (W)       13   ptly cldy  none
     04:01    30    -6     15   272  (W)       27    cloudy    none
     05:01    29    -7     14   305  (NW)      34    cloudy    none
     06:01    28    -5      8   296  (WNW)     25    cloudy    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.