From: "Noel Camron Hastings"
Subject: 3.5m Night Log 20010420
Date: Sat, 21 Apr 2001 05:47:02 -0600
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                        Friday, April 20th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 R.Walterbos   R.Walterbos,J.Helmboldt DIS-Med         --:--  --:--
 W.Zheng       W.Zheng                 DIS-low         02:10  05:30
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM01/R      20:32 01:00   4.5   0    0    0    0    0    0    0    0
 JH07/R      01:00 05:32   1.2   0    0    0   3.3   0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: Noel Camron Hastings
     Opening was delayed due to high winds and dust. We eventually opened
at 20:51 MDT under partially cloudy skies. No problems encountered.
     Immediately upon opening, after two focus frames, the dust went up
by 15,000 counts, so we closed again at 21:03 MDT.
     At 22:24 MDT we had another false fire alarm in the new dorm. Dust
dropped below limits and we were able to open at 02:00 MDT and stayed
open the rest of the night.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 20:56  DIS Slit   -150(???)    1 54  10.9/11.8   237  26  none   1.48"
 02:12  DIS Slit   -220(706)  226 47   7.3/8.3    232  19  none   1.55"
 03:25  DIS Slit      0(915)  242 35   6.3/6.5    203  14  none   3.10"
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    57    16     31   254  (WSW)   4080   cloudy     none
     17:01    57    15     31   265  (W)     3210   cloudy     none
     18:01    56    15     35   258  (WSW)   2640   cloudy     none
     19:01    54    15     31   259  (W)     2516   cloudy     none
     20:01    51    13     30   253  (WSW)   1769   cloudy     none
     21:01    50    16     25   229  (SW)   35065   cloudy     none
     22:01    47    16     26   213  (SSW)  33537   cloudy     none
     23:01    47    15     29   221  (SW)   15174   cloudy     none
     00:01    46    16     17   233  (SW)   10399   cloudy     none
     01:01    45    16     19   237  (WSW)   4266   cloudy     none
     02:01    44    17     16   241  (WSW)   2279   cloudy     none
     03:01    43    18     16   217  (SW)    2480   cloudy     none
     04:01    43    18     18   206  (SSW)   1874   cloudy     none
     05:01    44    14     25   199  (SSW)   1485   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.