From: Russet McMillan
Subject: 3.5m Night Log 20060220
Date: Tue, 21 Feb 2006 05:31:47 -0700 (MST)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Monday, February 20, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 P.Szkody        P.Szkody               DIS            --:--  --:--
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW07/R      18:47  05:47  6.3  4.7   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Thick high clouds before sunset cleared off for twilight.  We were
 able to get focused, then the clouds moved back in during the setup
 on the first target.  After an hour or so of clouds thickening to
 overcast, I closed the dome.  At 23:30 I opened for a hole,
 re-focused, then again got hit by clouds on the first target.  Since
 the clouds were partly orographic, they were very hard to predict
 from the satellite and we couldn't tell when another hole might open
 up.  It turned out... never.
                      ------- 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
 ---------------------------------------------------------------------
 18:32 DISslit     75(686)     131 65  2.1/2.9    263  17   -     1.3
 23:42 DISslit     0(672)      -45 38  1.9/1.9    249  15   -     1.1
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    40    12     15   272  (W)      808   cloudy     none
     17:01    37    13     17   260  (W)      590  ptly cldy   none
     18:01    36    15     22   262  (W)      516   cloudy     none
     19:01    36    14     16   259  (W)      525   cloudy     none
     20:01    36    11     10   272  (W)      536   cloudy     none
     21:01    36     5     14   267  (W)      477   cloudy     none
     22:01    36     3     21   245  (WSW)    785   cloudy     none
     23:01    36     5     22   239  (WSW)    442  ptly cldy   none
     00:01    36     7     15   243  (WSW)    340   cloudy     none
     01:01    36    11     19   256  (WSW)    304   cloudy     none
     02:01    35    12     18   252  (WSW)    247   cloudy     none
     03:01    34    11     21   249  (WSW)    332   cloudy     none
     04:01    33    11     13   257  (WSW)    327   cloudy     none
     05:01    32    13     17   269  (W)      324   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
      Telescope drives operational. Current TCC version: 2.8.1
      Current TUI version: TUI 1.1