Subject: 3.5m Night Log 20080402
Date: Thu,  3 Apr 2008 05:16:41 -0700 (MST)
From: bketzeba@apo.nmsu.edu (Bill Ketzeback)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Wednesday, April 2, 2008
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 ------------------------------------------------------------------
 J.Dalcanton    J.Holtzman,S.Courteau   DIS           02:54  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
 ---------------------------------------------------------------------
 UW01/R     20:19  05:54   6.6   0    0    0   2.2  0.8   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 Overcast skies kept us closed until about 3AM. The main weather system
 left the area around 10PM however orographic clouds formed as it was
 leaving the area. It took several hours for the watervapor map to show
 sufficiently dry warm air to cause the skies to clear.
 Seeing was moderate. The echelle worked fine during my afternoon checkout
 however later in the night when I tried a test exposure it failed during
 readout. Several attempts to revive the ability to take exposures were
 unsucessful. See PR/782 for additional details. No other problems.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 ----------------------------------------------------------------------
 02:53 dis-slit -110(-159)  46  73   4.5  7.2  7.8  6.2  5.2   --   1.44
 02:59 NA2gdr  2231(24231)  43  74   4.4  7.0  7.5  5.8  4.9 R+nd2  1.20
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    49     6     28   259    (W)   2031   cloudy     none
     17:00    48     8     23   256  (WSW)   1953   cloudy     none
     18:00    49    10     30   240  (WSW)   2723   cloudy     dust
     19:00    49    18     35   243  (WSW)   4476   cloudy     dust
     20:00    48    17     22   259    (W)   1155   cloudy     none
     21:00    48    14     21   257  (WSW)   1054   cloudy     none
     22:00    47    14     22   242  (WSW)   1220   cloudy     none
     23:00    47    12     25   236   (SW)   1249   cloudy     none
     00:00    45    10     15   266    (W)   2248   cloudy     none
     01:00    44     9     19   268    (W)   2776   cloudy     none
     02:00    42     7     23   255  (WSW)   2510 mstly cldy   none
     03:00    40     7     16   266    (W)   2756    clear     none
     04:00    39     9     14   302  (WNW)   2629    clear     none
     05:00    39     9     14   269    (W)   2620    clear     none
     06:00    38     8     15   283  (WNW)   2573    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
      Telescope drives operational. Current TCC version: 2.9.1
      Current TUI version: TUI 1.4.5