Subject: 3.5m Night Log 20090415
Date: Thu, 16 Apr 2009 12:09:58 +0000 (UTC)
From: bketzeba@apo.nmsu.edu
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Wednesday, April 15, 2009
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)              INSTRUMENT   START  FINISH
 -------------------------------------------------------------------
 J.Dalcanton     J.Holtzman,S.Courteau    DIS          18:00  01:05
 J.Greene        J.Greene                 DIS          01:05  02:35
                                          Triplespec   --:--  --:--
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW04/R     20:29  01:05    0    0    0    0   4.6   0    0    0    0
 PU06/R     01:05  05:37    0   3.1   0    0   0.4  1.1   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 Az Vel Scale
 Was 579 measured 573.4 changed to 574
 Alt Vel Scale
 Was -606 measured -604  n/c
 Partly cloudy to increasingly cloudy skies after midnight. By
 02:45 skies were completely cloudy. We stayed open hoping for
 a break in the clouds that never came. At 05:00 I saw some
 radar returns approaching the broders of Otero County.  I
 closed up the dome about 10 minutes before light snow flurries
 were reported by the Sloan Observers.
 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
 --------------------------------------------------------------------------
 20:10 dis-slit  39(   43)  47  75   6.3  8.3  7.7  7.3  6.7   ---  1.20
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    50    18     26   250  (WSW)           clear     none
     17:00    53    17     26   221   (SW)           clear     none
     18:00    50    13     33   237  (WSW)           clear     none
     19:00    47    15     32   228   (SW)           clear     none
     20:00    44    14     22   227   (SW)         ptly cldy   none
     21:00    43    18     13   240  (WSW)         ptly cldy   none
     22:00    40    20     19   238  (WSW)         ptly cldy   none
     23:00    40    23     17   250  (WSW)         ptly cldy   none
     00:00    39    24     21   239  (WSW)         ptly cldy   none
     01:00    37    26     18   228   (SW)         ptly cldy   none
     02:00    36    27     25   229   (SW)         ptly cldy   none
     03:00    36    26     20   231   (SW)          cloudy     none
     04:00    35    27     19   232   (SW)          cloudy     none
     05:00    31    21     22   291  (WNW)          cloudy   lt snow
     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: 2.10.0
      Current TUI version: TUI 1.5.1