Date: Sun, 14 Dec 2008 11:41:50 -0000 (UTC)
Subject: 3.5m Night Log 20081213
From: "Gabrelle Saurage"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Saturday, December 13th, 2008
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)              INSTRUMENT  START  FINISH
-------------------------------------------------------------------
 A.Kowalski      A.Kowalski               DIS         17:00  19:45
 J.Wisniewski    A.Kowalski,J.Wisniewski  DIS         --:--  --:--
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
 UW11/R     17:56  23:00   0.2  5.9   0    0    0    0    0    0    0
 UW12/R     00:00  06:00    0   6.0   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialists: G.Saurage
AzVeloScale: 580.6, 579.5; 580.1 (changed to 580)
We were only open for a few hours at the beginning of the night. Overcast skies and
rising winds closed us around 19:45. Conditions continued to worsen higher winds,
rising humidity and rising dust levels (blowing snow); eventually fog with 40+mph
gusts. Never opened again.
                       ------- 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
 -----------------------------------------------------------------
 17:33 dis-slit   170(  -71)   7  52   2.2  2.9  2.6  2.3  2.3     1.91
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    37    21     30   243  (WSW)    780    clear     none
     17:00    36    20     17   217   (SW)   1024    clear     none
     18:00    36    20     23   233   (SW)   1088    clear     none
     19:00    36    22     20   218   (SW)   2609  ptly cldy   none
     20:00    35    21     22   239  (WSW)   3010   cloudy     none
     21:00    34    23     26   205  (SSW)   2196   cloudy     none
     22:00    32    24     24   198  (SSW)   2851   cloudy     none
     23:00    31    26     23   200  (SSW)   3172   cloudy     none
     00:00    31    30     24   198  (SSW)   3120   cloudy    humid
     01:00    31    31     35   204  (SSW)   6171   cloudy    humid
     02:00    31    31     40   221   (SW)  36888   cloudy     fog
     03:00    31    30     28   250  (WSW)   2326   cloudy    humid
     04:00    31    30     29   245  (WSW)   2049   cloudy    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 1.5