From: Russet McMillan
Subject: 3.5m Night Log 20051226
Date: Tue, 27 Dec 2005 06:26:02 -0700 (MST)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Monday, December 26, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 M.Strauss       M.Strauss, M.Shin      DIS            16:15 23:25
                 M.Oguri
 M.Oguri         M.Oguri, M.Shin        DIS            04:50 06:00
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 PU06/R      18:02  23:55  0.5   0    0    0   5.4   0    0    0    0
 PU04/R      23:55  06:06  3.6  1.3   0    0    0   1.3   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: J.Dembicky
 NA2 guider was down (non-responsibe, host is down when pinged) during
 checkout.  Camera was power cycled and restarted.
 No other problems.
 2nd Half Observing Specialist: R.McMillan
 Clouds, high winds, and dust prompted me to close before midnight.
 A significant dust spike followed and kept us closed several hours,
 then we wrestled some more clouds when we re-opened.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 17:28  DISslit   25(801)  -11  52   4.2/5.9  247  20  none  1.5
 18:51  DISslit  100(825)  -41    44  3.8/3.9  254  21  none  1.9
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    43    12      7   266  (W)      374   Clear      none
     17:01    41    14     16   261  (W)      753   Clear      none
     18:01    40    15     18   265  (W)     1092   Clear      none
     19:01    39    14     13   262  (W)     1725   Clear      none
     20:01    38    15     20   268  (W)      955   Clear      none
     21:01    38    15     20   267  (W)      663  Mst. Clr    none
     22:01    38    16     18   270  (W)     1002   Cirrus     none
     23:01    38    15     23   289  (WNW)   1189   Cirrus     none
     00:01    38    15     19   286  (WNW)   2026   cloudy     none
     01:01    38    12     18   274  (W)    11731   cloudy     dust
     02:01    37    13     22   283  (WNW)  16854   cloudy     dust
     03:01    36    15     11   270  (W)    14579   ptly cldy  dust
     04:01    35    17     15   287  (WNW)   6838   ptly cldy  dust
     05:01    36    12     21   295  (WNW)   1198   ptly cldy  none
     06:01    36     9      8   281  (W)      433   ptly cldy  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
      Telescope drives operational. Current TCC version: 2.8
      Current TUI version: TUI 1.1