From: Russet McMillan
Subject: 3.5m Night Log 20010418
Date: Thu, 19 Apr 2001 05:01:55 -0600 (MDT)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                       Wednesday, April 18th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 R.Walterbos   R.Walterbos,J.Helmboldt SPIcam          19:36  21:30
 J.Frieman     G.Richards              DIS-low         --:--  --:--
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM01/O      20:32 01:00   3.5   0    0    0   1.0   0    0    0    0
 UC02/R      02:00 05:34   3.7  0.9   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: Jack Dembicky
 Opened louvers / cooling fans turned on at 17:35.  Closed louvers
 at 18:25 to do grating checks with DIS (too much stray light with the
 louvers open).  Opened enclosure and louvers at 19:30.
 Rene was training J.Helmboldt tonight on the 3.5m
 Clouds pretty much stopped any observing at 21:30, I closed the enclosure
 at 23:00 since the clouds had not subsided and the lower the dust levels
 in the dome below the soft limit.
 2nd half Observing Specialist: Russet McMillan
 Varying clouds persisted during second half.  Although conditions
 would have permitted opening for an houror so, there was no
 possibility of science, so the telescope remained closed.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 20:15  SPIcam      -160(1060)  7 52   9.9/12.8   212  11   Ha    1.13
 20:50  NA2gdr     -1784(58215) 2 53   9.8/12.0   218   8  none   1.03
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    58    15      7   262  (W)     1068   Cirrus     none
     17:01    60    27     12   262  (W)     1654  Lt. Cirrus  none
     18:01    57    26     11   252  (WSW)   2554  Lt. Cirrus  none
     19:01    52    31      9   247  (WSW)   2162   Cirrus     none
     20:01    49    34     11   224  (SW)    2213   Cirrus     none
     21:01    50    36     12   216  (SW)    2147   Clouds     none
     22:01    50    35     13   224  (SW)    2129   Clouds     none
     23:01    50    33     11   248  (WSW)   2116   Clouds     none
     00:01    50    32     13   244  (WSW)   2049   cloudy     none
     01:01    50    33     16   280  (W)     2091  mstly cldy  none
     02:01    50    32     17   268  (W)     2119  mstly cldy  none
     03:01    49    33     13   271  (W)     2132   cloudy     none
     04:01    49    33     14   285  (WNW)   2293   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 Ctrlv3.0b27. Current TCC version: 2.5.1
  Current MC version: v1_7_3.