Date: Wed, 10 Mar 2010 04:50:30 -0700
Subject: 3.5m Night Log 20100309
From: Jeff Coughlin
                       Apache Point Observatory
                       3.5m Telescope Night Log
                      Tuesday, March 9, 2010
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 E.Ellingson   E.Ellingson + 15 students  DIS          2:30   3:30
   NST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 CU01/O     18:15  06:12   8.3  2.6   0    0   0.7  0.3   0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Coughlin
 Had a storm front that moved through first half. After 2am levels began
 to drop and I was able to open at 2:30am. Seeing was exceptionally bad
 at > 3". We were able to be open for an hour before winds and humidity
 came back up. No problems aside from the weather.
                     ------- 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
 --------------------------------------------------------------------------
 02:45 dis-slit   400( -311) -54  54  -10.7 -6.8 -3.7 -8.5 -9.1     3.30
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    36    16     18   249  (WSW)    583  ptly cldy   none
     17:00    35    18     21   268    (W)    815  ptly cldy   none
     18:00    32    18     17   232   (SW)    706  ptly cldy   none
     19:00    32    18     18   216   (SW)    729 mstly cldy   none
     20:00    32    18     22   237  (WSW)    976   cloudy     none
     21:00    31    18     36   223   (SW)   2202   cloudy     none
     22:00    29    19     27   254  (WSW)   2086   cloudy     none
     23:00    24    24     20   264    (W)   7378   cloudy     none
     00:00    20    19     37   270    (W)    801   cloudy     none
     01:00    17    16     28   266    (W)   1246   cloudy     none
     02:00    14    10     27   268    (W)   1190 mstly clr    none
     03:00    13     8     28   290  (WNW)    975    clear     none
     04:00    12    10     29   280    (W)    825 mstly clr    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: TUI 1.7.0