Date: Sat, 27 Mar 2010 12:59:09 -0000 (UTC)
Subject: 3.5m Night Log 20100326
From: jwhueh@apo.nmsu.edu
                       Apache Point Observatory
                       3.5m Telescope Night Log
                       Friday, March 26, 2010
                                                       ACTUAL
ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
A. Evans        O. Fox, A. Wong        TSPEC         --:--    --:--
B. Balick       B. Balick              DIS           --:--    --:--
A. Evans        O. Fox, A. Wong        TSPEC         04:50    06:45
  INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
--------------------------------------------------------------------
UV03/R    19:28   21:28    0   2.0   0    0   0     0    0    0
DD07/R    21:28   02:10    0   4.7   0    0   0     0    0    0
UV03/R    01:10   06:49    0   2.6   0    0  1.6   0.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist:    J. Huehnerhoff
Start the night with wind gusts of 70mph and lots of dust.  Switched to
generator power around 1700MT due to unreliable utility power, shortly
after we lost utility completely.  Dust didn't drop to acceptable levels
till 0230MT but wind is still above closure limit.  Winds died down around
0400MT but a relatively high humidity and a high dust count kept us
closed.  Opened when dust and humidity decreased.
                    ------- 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
--------------------------------------------------------------------------
 04:53 TSPEC   661(  475) 230  37  -4.9 -2.5 -0.2 -3.8 -3.9   clear  1.64
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    48     4     56   266    (W)  18841    clear     dust
     17:00    45     2     52   266    (W)  35120    clear     dust
     18:00    40     2     36   274    (W)  34947    clear     dust
     19:00    37     2     40   282  (WNW)  35907    clear     dust
     20:00    35     5     40   276    (W)  29669    clear     dust
     21:00    32     9     25   275    (W)   9877    clear     dust
     22:00    30    12     23   262    (W)   5768    clear     dust
     23:00    29    13     24   273    (W)   8647    clear     dust
     00:00    28    14     31   289  (WNW)  19024    clear     dust
     01:00    28    16     26   300  (WNW)   4507    clear     dust
     02:00    27    17     20   293  (WNW)   4593    clear     dust
     03:00    26    18     26   317   (NW)   2863 mstly clr    none
     04:00    24    15     24   326   (NW)   3020    clear     none
     05:00    23    15     17     0    (N)   2374    clear     none
     06:00    23    14     12   329  (NNW)   1200    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: 2.11.1
    Current TUI version: 1.7.1