Date: Wed, 23 Mar 2011 06:17:41 -0600 (MDT)
Subject: 3.5m Night Log 20110322
From: jwhueh@apo.nmsu.edu
                       Apache Point Observatory
                       3.5m Telescope Night Log
                       Tuesday, March 22, 2011
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
W.Ketzeback       J.Huehnerhoff         TSPEC          19:12   20:19
S.Schmidt         S.Schmidt, O.Fox      TSPEC          20:25   22:30
                                                       23:15   01:10
E.Hilton          E.Hilton              TSPEC          01:10   06:15
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
--------------------------------------------------------------------
DD04/O     19:25   20:25    0    0    0    0   1.0  0.0   0    0
UW09/R     20:25   01:10   0.6  0.2   0    0   2.1  1.9   0    0
UW10/R     01:10   06:55    0    0    0    0   0.0  5.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist:    J.Huehnerhoff
Clear night with decent seeing and a brief period of dust.
Closed at 2230MST when external one micron dust count jumped from 3K to
10K in 15 minutes.  Dust peaked around 15K decreasing after 30 minutes.
Reopened after stable dust count below 5K.  Clear and photometric the
remainder of the night.
                    ------- 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
--------------------------------------------------------------------------
 19:29 TSPEC   367(   99) 231  69   3.2  4.8  3.9  4.0  3.9   --  1.36
 20:19 TSPEC   265(  -64) 184  57   2.5  3.3  3.0  2.6  2.6   --  1.38
 01:44 TSPEC   190( -225)   5  69   1.8  1.8  2.1  1.5  1.7   --  1.23
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    45    13     29   253  (WSW)   2008    clear     none
     17:00    44    12     30   260    (W)   1684    clear     none
     18:00    43    11     17   267    (W)   1343    clear     none
     19:00    40    11     20   254  (WSW)   1633    clear     none
     20:00    37     8     19   251  (WSW)   1026    clear     none
     21:00    36     8     13   248  (WSW)   1055    clear     none
     22:00    36    11     22   274    (W)   1140    clear     dust
     23:00    36     0     12   283  (WNW)   8632    clear     dust
     00:00    36    -6     13   292  (WNW)   3537    clear     none
     01:00    36    -3     19   312   (NW)   2706    clear     none
     02:00    36     4     22   294  (WNW)   1463    clear     none
     03:00    36     6     18   263    (W)   1341    clear     none
     04:00    34     7     20   263    (W)   1154    clear     none
     05:00    34     7      9   267    (W)   1220    clear     none
     06:00    34     6     15   264    (W)   1385    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: 2.14.0
    Current TUI version: 1.8.6