From:
Subject: 3.5m Night Log 20100815
Date: Tue, 17 Aug 2010 05:58:01 +0000 (UTC)
[This night log was sent out to the wrong list, so here's a
resend...]
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, August 15, 2010
                    ACTUAL
 ASTRONOMER      OBSERVER(S)         INSTRUMENT        START  FINISH
 ------------------------------------------------------------------
 A. Brown        A. Brown            ARCES             21:45   00:00
 B. Williams     B. Williams         DIS               --:--   --:--
 W. Ketzeback    N. Ule G Saurage    ARCES             --:--   --:--
  INST         SCHEDULED     WEATH     EQUIP     OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   D    B
 --------------------------------------------------------------------
 CU02/R    19:57   00:59   1.0  1.8   0    0   0.7  1.6  0    0
 UW06/R    01:11   05:13   4.2   0    0    0   0.0  0.0  0    0
 UW13/W    05:25   06:19   1.0   0    0    0   0.0  0.0  0    0
 note: scheduled times listed include instrument change time
             ------------- ACTIVITY LOG --------------
 Observing Specialist:  N.Ule, G.Saurage
Night started with high humidity, strong winds, and approaching
 storms.  First observer took his cals, then we waited 30 minutes
 before opening the dome and allowing him 2.5 hours of observing
 time.  At midnight humidity rose and temperatures dropped too close
 to dew point.  Dome was closed and remained so for the duration of
 the evening.  Second observer managed to take DIS cals but dome
 remained closed.  Telescope Operators took cals for UW13 but were
 unable to open dome due to unsafe conditions mentioned above.
Despite poor weather the telescope operated well, as opposed to
previous night (see night log 20100815).
                   ------- 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
--------------------------------------------------------------------------
21:57 ECHELLE  -275( -370) 165  79  15.5 17.4  16.5 16.4  16.3   -   1.58
             ------------- Weather LOG ----------------
                              Wind                       Precip.or
  Time  Temp F  Dewp F MPH  Direction   Dust   Sky      Conditions
   ------------------------------------------------------------------
  16:00    67    52     13    98    (E)        mstly clr    none
  17:00    67    51     12    76  (ENE)        mstly clr    none
  18:00    66    50     14    83    (E)        mstly clr    none
  19:00    64    53     12    80    (E)        mstly clr    none
  20:00    62    53     17    76  (ENE)        mstly clr    none
  21:00    61    53     19    71  (ENE)        mstly clr    none
  22:00    60    53     10    81    (E)        mstly clr    none
  23:00    59    54     16    81    (E)        mstly clr    none
  00:00    59    54     16    82    (E)        mstly clr   humid
  01:00    58    54     15   121  (ESE)        mstly clr   humid
  02:00    58    54     12   118  (ESE)        mstly clr   humid
  03:00    57    54     16   112  (ESE)        mstly clr   humid
  04:00    57    54     17   110  (ESE)        mstly clr   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: 2.13.0
   Current TUI version: 1.8.1