Date: Tue, 2 Sep 2008 05:56:31 -0600 (MDT)
Subject: 3.5m Night Log 20080901
From: "William Ketzeback"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Monday, September 1, 2008
                                                                                                 ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
-------------------------------------------------------------------
 A.Becker       D.McGinnis              DIS           19:50  01:05
 B.Williams     B.Williams              DIS           01:05  02:05
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
--------------------------------------------------------------------
 UW06/R     20:22  01:05    0    0    0    0   4.7  0.1   0    0    0
 UW07/R     01:05  05:44   3.7   0    0    0   1.0   0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 Clear skies all night with moderate seeing. The dewpoint depression
was
 within closure limits from 02:05 until morning. We never reopened.
 We had considerable problems with the DIS slitviewer guiding software.
 This was just a continuation of PR/868. Little time was lost while the
 camera was stopped and restarted.
 My first half observer had TUI lock up on him at UT04:20. No time
was lost
 while he logged off and back on. The science exposure marched happily
 along during this problem.
 We had no cloud camera tonight. We could not get it started. John B.
 suspects it it a problem with camera or fiber converter at the
instrument.
                       ------- 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
-----------------------------------------------------------------------
 19:57 dis-slit  -171(  326)  71  27  13.3 17.1 15.7 16.0 12.9   --
1.44
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    61    52      8   275    (W)           clear     none
     17:00    59    49      5   341  (NNW)           clear     none
     18:00    59    47      1   268    (W)           clear     none
     19:00    57    45      5   346  (NNW)           clear     none
     20:00    56    43      7    72  (ENE)           clear     none
     21:00    57    43      6    78  (ENE)           clear     none
     22:00    57    43      4   110  (ESE)           clear     none
     23:00    56    42      4   259    (W)           clear     none
     00:00    55    45      1   284  (WNW)           clear     none
     01:00    56    44      1   235   (SW)           clear    humid
     02:00    53    49      3   202  (SSW)        mstly clr   humid
     03:00    54    49      2   283  (WNW)           clear    humid
     04:00    53    51      6   267    (W)           clear    humid
     05:00    53    49     10   330  (NNW)           clear    humid
     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