Date: Thu, 21 Dec 2000 06:58:40 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20001220
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                     Wednesday, December 20th, 2000
                                                           ACTUAL
 ASTRONOMER    OBSERVER(S)            INSTRUMENT       START  FINISH
 --------------------------------------------------------------------
 D.Golimowski  D.Golimowski           DIS-Low          16:50  00:10
 H.Tran        Z.Tsvetanov,H.Tran     DIS-Low          00:10  06:04
  INST        SCHEDULED     WEATH     EQUIP      OBS    DAY   NOTUSED
 I/RO/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 JH04/R     17:59  00:10   0    0    0    0   6.2   0    0    0    0
 JH08/R     00:10  06:04   0    0    0    0   3.0  2.9   0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist, 1st Shift: Russet McMillan
 The telescope was opened right at sunset under thin cirrus.  The
 seeing was fairly good during focus runs and remained good on the
 guider, but I couldn't get the same results on longer slitviewer
 exposures even after careful focusing.  Between the mediocre
 slitviewer seeing and the cirrus, it was once again hard to acquire
 and observe the faint DIS targets, but some science was achieved
 anyway.
 Observing Specialist, 2nd Shift: Jack Dembicky
 Cirrus clouds overhead all night. The telescope ran smoothly. I
 Transfered telescope control (and slitviewer) over to 2nd half operator
 at 00:10.
        --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time  Instrument   Focus     Az  El    Temp-C   Dir MPH  filt   FWHM"
 ---------------------------------------------------------------------
17:44 DISslit     -100(610)   198 55  1.2/2.5    326  12   -     1.02
22:45 DISslit       80(655)   133 67  1.2/0.2    306  06   -     1.05
02:00 DISslit       20(537)    60 58 -0.1/-0.4   300  11   -     1.05
04:10 DISslit        0(474)     1 51 -1.8/-1.6   322  09   -     1.37
             ------------- WEATHER CONDITIONS ------------
                               Wind                          Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    35     0      1    86  (E)      197  mstly clr  none
     17:01    36     0      3    21  (NNE)    150  mstly clr  none
     18:01    35    -1      8    11  (N)      173   cirrus    none
     19:01    34    -2      7   313  (NW)     210   cirrus    none
     20:01    34    -1      8   305  (NW)     215   cirrus    none
     21:01    33     0      5     5  (N)      221   cirrus    none
     22:01    32     0      1   327  (NNW)    247   cirrus    none
     23:01    34     0      6   283  (WNW)    212   cirrus    none
     00:01    33     0      8   280  (W)      187   cirrus    none
     01:01    33     0     11   274  (W)      224   cirrus    none
     02:01    32     1     11   299  (WNW)    260   cirrus    none
     03:01    30     1     11   303  (WNW)    189   cirrus    none
     04:01    29     0      6   288  (WNW)    407   cirrus    none
     05:01    28     1      7   300  (WNW)    361   cirrus    none
     06:01    27     3      7   353  (N)      369   cirrus    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 Ctrlv3.0b27. Current TCC version is 2.4.1
 Current MC version: v1_7_3.
 - Russet McMillan, Jack Dembicky