From:
Subject: 3.5m Night Log 20081207
Date: Mon,  8 Dec 2008 13:13:47 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Sunday, December 7, 2008
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)              INSTRUMENT  START  FINISH
-------------------------------------------------------------------
 M.Strauss       M.Shin,R.Reyes,X.Liu     Tspec,DIS   18:00  20:00
                                                      21:30  05:30
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
 PU06/R     17:55  05:56   2.6  6.4   0    0   1.0  2.0   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialists: R.McMillan
The night was cloudy with moderate to poor seeing.  Although we were
open most of the night, the observers struggled with clouds the
entire time.  The few hours shown as observed are roughly
representative of when data was being taken, and even some of that
wasn't usable.
We closed for a while in the evening when I wasn't sure of some radar
returns (and the clouds were fairly thick), and then again shortly
before morning twilight when more believable radar returns showed
up.  The telescope and both instruments behaved well as far as we
could tell under the conditions.
                       ------- 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
 ---------------------------------------------------------------------
 18:06 TSPEC   -50(  183)  24  53   4.2  6.5  5.8  6.0  4.8   Ks  1.20
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    43    15      6   316   (NW)    244  ptly cldy   none
     17:00    41    16      9   305   (NW)     94  ptly cldy   none
     18:00    40    14      7   290  (WNW)    101  ptly cldy   none
     19:00    41    13     13   274    (W)    202  ptly cldy   none
     20:00    43     9     15   286  (WNW)    234 mstly cldy   none
     21:00    44    11     20   306   (NW)    143 mstly cldy   none
     22:00    42    22     13   276    (W)    217  ptly cldy   none
     23:00    41    12     17   269    (W)    235  ptly cldy   none
     00:00    40     8     16   269    (W)    254  ptly cldy   none
     01:00    40    12     24   266    (W)    178 mstly cldy   none
     02:00    39    16     25   269    (W)    232 mstly cldy   none
     03:00    39    15     26   273    (W)    191 mstly cldy   none
     04:00    37    14     20   266    (W)    231  ptly cldy   none
     05:00    37    14     21   264    (W)    272  ptly cldy   none
     06:00    37    18     19   254  (WSW)    336  ptly cldy   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 1.5