Date: Tue, 17 Sep 2002 06:31:55 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m NightLog 20020916
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Monday, September 16, 2002
                                                           ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 B.Goldman      R.Walterbos, J.Helmbold DISII          19:04  00:40
 B.Goldman      J.Holtzman, B.Moorthy   DISII          00:40  01:40
                                                       03:55  06:04
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM04/R      20:02  05:55  0.9  1.3   0    0   2.0  5.7   0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: J. Dembicky
 Started cooling the enclosure (fans) around 18:00.  Opened the enclosure
 at 20:10 and proceeded to focus DIS. Seeing was around 0.9 arc sec.
 I closed the enclosure at 01:40 after the cloud cover became a little to
 thick for my liking.
 I opened the enclosure at 03:50 under what appeared to be improving
 skies.  Shortly thereafter clouds moved back in and the humidity started
 creeping up but stayed below closure limits.
                        ------- FAILURE LOG -------
 PROG   INST       FAILURE      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
 ---------------------------------------------------------------------
 20:23  DISslit    -200(602) -117  71   10.8/13.0  199   7  none  0.87
 01:15  DISslit      50(825)  195  51   11.3/11.0  233  13  none  2.12
 04:08  DISslit        0(879) 289  27   10.5/10.6  247   9  none  2.38
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    62    45      7   269  (W)      104   Pt. Cldy   none
     17:01    59    42      6   271  (W)      110   Pt. Cldy   none
     18:01    55    42     11   222  (SW)     103   Pt. Cldy   none
     19:01    52    41      9   265  (W)      117   Mst. Clr   none
     20:01    51    41      6   213  (SSW)    114    Clear     none
     21:01    51    40      7   190  (S)      171    Clear     none
     22:01    52    39      9   231  (SW)     198   Pt. Cldy   none
     23:01    51    41     13   235  (SW)     222   Mst. Cldy  none
     00:01    52    42     13   244  (WSW)    224   Mst. Cldy  none
     01:01    52    43     11   236  (SW)     293   Mst. Cldy  none
     02:01    52    42     14   237  (WSW)    220   Mst. Cldy  none
     03:01    51    42     13   217  (SW)     198   Mst. Cldy  none
     04:01    51    44     11   228  (SW)     203   Mst. Cldy  none
     05:01    51    45     12   241  (WSW)    216   Pt. Cldy   none
     06:01    51    45     12   247  (WSW)    230   Pt. 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: 2.82
   Current guide software version: GIm Ctrlv4.1b2
   Current TCC version: 2.6.6