From: Russet McMillan
Subject: 3.5m Night Log 20010923
Date: Mon, 24 Sep 2001 06:25:31 -0600 (MDT)
Date: Sun, 23 Sep 2001 06:28:58 -0600 (MDT)
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                       Sunday, September 23rd, 2001
                                                           ACTUAL
  ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
  -------------------------------------------------------------------
  C.Stubbs      C.Stubbs,A.Miceli       SPIcam          19:15  00:40
  P.Szkody      P.Szkody                DIS-High        05:25  06:05
    INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
  I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
  --------------------------------------------------------------------
  UW07/R      19:52  01:00   0    0    0    0   1.3  3.9   0    0    0
  UW04/R      01:00  06:00  4.4   0    0    0   0.6   0    0    0    0
   note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: Russet McMillan
 The telescope was opened an hour before sunset for cooling.  Weather
 was mostly clear and cool.  Once we started observing, the seeing was
 moderate, 1.1-1.5 arcseconds.  Both the wind and the humidity rose
 quickly around sunset, but leveled off before reaching a limit.  We
 were able to get lots of science during the first half, then the
 humidity rose to the limit just at the beginning of the instrument
 change, and the telescope was closed.  The humidity went high enough
 for ground fog to appear briefly, then dropped to linger at the limit
 for hours.  We were finally able to open at 05:20 and get a couple of
 spectra before twilight.
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 19:49  SPIcam    50(899)     319 51  9.3/10.4   82   23   r'    1.3
 19:55  NA2gdr    479(60479)  319 50  9.2/10.2   77   19   V     1.24
 23:39  SPIcam    125(884)    199 55  8.4/8.5    77   20   r'    1.48
              --------------- WEATHER LOG ----------------
                                  Wind                        Precip.or
      Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     17:01    57    32      8    83  (E)      244   mstly clr   none
     18:01    54    33      9    87  (E)      228   mstly clr   none
     19:01    51    35     22    76  (ENE)    202   mstly clr   none
     20:01    48    39     19    75  (ENE)    242   mstly clr   none
     21:01    49    39     22    75  (ENE)    258   ptly cldy   none
     22:01    48    40     19    73  (ENE)    303   mstly clr   none
     23:01    48    39     13    76  (ENE)    303   mstly clr   none
     00:01    47    40      7    99  (E)      293   mstly clr   none
     01:01    45    42     10    72  (ENE)    330   mstly clr   none
     02:01    45    43      6   102  (ESE)    430   mstly clr    fog
     03:01    45    42     17    67  (ENE)    270   mstly clr   none
     04:01    44    41     20    68  (ENE)    275    clear      none
     05:01    44    41     10    52  (NE)     174    clear      none
     06:01    47    39      1    42  (NE)     409    clear      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 Ctrlv4.1b2. Current TCC version: 2.5.5
   Current MC version: v1_7_3.