Date: Sun, 10 Apr 2005 06:06:53 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20050409
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Saturday, April 09, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 G.Stringfellow  G.Stringfellow         DIS            --:--  --:--
                 P.McGehee
 M.Oguri         D.Johnston             DIS            --:--  --:--
 V. Debattista   T.Lisker               DIS            04:20  05:47
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 CU03/R      20:24  21:22  0.7  0.3   0    0    0    0    0    0    0
 PU04/R      21:22  01:00  3.6   0    0    0    0    0    0    0    0
 UW06/O      01:00  05:45  4.8   0    0    0   1.5   0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Dust and high winds kept us closed for the first part of the evening.
 Then dust, then clouds.  Things finally moved out around 04:00 and I
 opened at 04:15.
 Again while I was trying to focus the NA2 guider tonight the shutter was
 causing problems.  I guessed at the focus for the guider and handed the
 telescope over to the observer since we would be running out of time
 soon.  The seeing was also changing rapidly so I didn't want to wait too
 long on focusing the guider with the shutter problem.
 No problems with the drives/run aways tonight.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SEGDFNVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
 UW06      O         I/H     --:--   --:--  NA2 shutter problems off
                                            and on again durning the
                                            entire night
                 ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 04:27  DISslit     -400(279)  69  63  -5.0/-2.7   287  17  none  2.7
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    49    12     27   235  (SW)    7282   Pt. Cldy   Dust
     17:01    47    10     34   226  (SW)    9481   Pt. Cldy   Dust
     18:01    48    12     24   270  (W)     5246   Pt. Cldy   Dust
     19:01    43    15     27   261  (W)     7272    Cloudy    Dust
     20:01    39    16     22   262  (W)     5998    Cloudy    Dust
     21:01    35    18     17   295  (WNW)  27141    Cloudy    Dust
     22:01    31    21     22   297  (WNW)  13793    Cloudy    Dust
     23:01    31    20     22   288  (WNW)   5224    Cloudy    Dust
     00:01    30    18     16   272  (W)     6619    Cloudy    Dust
     01:01    28    14     16   270  (W)     1654    Cloudy    none
     02:01    28     4     25   265  (W)     1041    Cloudy    none
     03:01    26     5     14   281  (W)      982    Cloudy    none
     04:01    25     4     15   267  (W)      906   Pt. Cldy   none
     05:01    22     8     19   300  (WNW)    758     Clear    none
     06:01    22     9     15   296  (WNW)    962     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.
     Note: The Tower Dust counter appears to be down at this time
                              TELESCOPE STATUS
      Telescope drives operational. Current Remark version: 2.85b
      Current TCC version: 2.7.2  Current TUI version: TUI 0.94