From: Russet McMillan
Subject: 3.5m Night Log 20060730
Date: Mon, 31 Jul 2006 05:17:41 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Sunday, July 30, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 -------------------------------------------------------------------
 G.Kacprzak      G.Kacprzak,C.Churchill    DIS         --:-- --:--
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 NM04/R      21:03 05:17   6.2  2.0   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: G.Saurage
 Thick fog at sunset, a little rain on and off. One fire alarm ground fault
 around 11:30pm. Fog and/or high humidity (at times over 100%!) rest of 1st
 half.
 2nd half Observing Specialist: R.McMillan
 Fog and mizzle throughout 2nd half.  The secondary temperature
 sensors were reporting unusually warm values, so I spent a while
 mining logs to track down which sensors were involved.  It's unclear
 whether the measurements are real or not; if real, they could be
 indicating a serious problem.
                       ------- 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
 ---------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    54    54     13   200  (SSW)   3992   cloudy   lt rain
     17:00    54    54      7   209  (SSW)   5176   cloudy   lt rain
     18:00    54    55     10   203  (SSW)  42774   cloudy     fog
     19:00    53    54     11   203  (SSW)  66976   cloudy     fog
     20:00    52    53      9   202  (SSW)  20234   cloudy     fog
     21:00    53    54     20   196  (SSW)  16922   cloudy     fog
     22:00    54    54     10   247  (WSW)  24363   cloudy     fog
     23:00    54    54      9   260    (W)  21186   cloudy     fog
     00:00    53    54     18   209  (SSW)  13379   cloudy     fog
     01:00    53    53     14   200  (SSW)  16228   cloudy     fog
     02:00    53    53     17   242  (WSW)   7309   cloudy   lt rain
     03:00    53    53     18   222   (SW)   8432   cloudy   lt rain
     04:00    53    54     16   234   (SW)  11734   cloudy     fog
     05:00    53    54     18   247  (WSW)  16433   cloudy     fog
     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: 2.8.4
      Current TUI version: TUI 1.2