From: Russet McMillan
Subject: 3.5m Night Log 20010511
Date: Sat, 12 May 2001 05:12:22 -0600 (MDT)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                         Friday, May 11th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 P.Szkody      P.Szkody                DIS-High        --:--  --:--
 D.Golimovsky  A.Uomoto,L.Walkowicz    DIS-Med         03:25  04:45
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 UW03/R      20:52 01:00   3.2  1.0   0    0    0    0    0    0    0
 JH04/R      01:00 05:07    0   2.8   0    0    0   1.3   0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: Camron Hastings
    Clouds, wind and a forest fire nearby. We stayed closed.
 Observing Specialist: Russet McMillan
 There were brief sprinkles around midnight, just enough to drop the
 dust level.  The wind gusts and clouds persisted for a while, but
 conditions reached a usable level (barely) shortly after 03:00, so we
 opened and were able to get some data through partial cloud cover,
 gusty winds, and bad seeing (2-4 arecsec).  Everything went smoothly
 except that the telescope focus was extremely negative, perhaps
 because it had not been cooled much prior to opening; it rose from
 -500 to about -250 in less than an hour and a half, but the
 adjustments weren't actual focus runs and so weren't recorded in the
 log.  We observed several targets, then had to close due to heavy
 clouds approaching from a direction with no reliable radar coverage.
         --------------- OBSERVER COMMENTS ----------------
L. Walkowicz(JH04):
Lost about 75% of the night to clouds. Otherwise, everything functional--
no problems. Slitviewer is wonderful.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
03:35 DISslit     -500(446)   185 63  7.2/8.1    67   24   -     2.19
03:38 NA2gdr      305(56305)  186 63  7.1/8.0    65   19   none  1.53
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01                 22    72  (ENE)    985   cloudy     rain
     17:01    58    24     10    73  (ENE)   1139   cloudy     none
     18:01    61    22      8    80  (E)     1455   cloudy     none
     19:01    57    28     20    74  (ENE)   1245   cloudy     none
     20:01    51    33     18    74  (ENE)   1311   cloudy     none
     21:01    50    32     22    63  (ENE)   1406   cloudy     none
     22:01    47    33     26    64  (ENE)   1218   cloudy     none
     23:01    43    36     31    62  (ENE)    521   cloudy     none
     00:01    43    36     28    55  (NE)     403   cloudy   lt. rain
     01:01    44    35     22    65  (ENE)    523   cloudy     none
     02:01    43    36     32    59  (ENE)    829   cloudy     none
     03:01    44    35     25    52  (NE)     363  ptly cldy   none
     04:01    43    35     28    62  (ENE)    549  ptly cldy   none
     05:01    44    34     23    76  (ENE)    527   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.