Date: Tue, 20 Oct 2009 05:28:09 -0600
Subject: 3.5m Night Log 20091019
From: Jeff Coughlin
                       Apache Point Observatory
                       3.5m Telescope Night Log
                      Monday, October 19, 2009
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 B.Woodgate      B.Woodgate, C.Grady       GFP        18:34  22:00
 G.Williger      B.Woodgate, C.Grady       DIS        --:--  --:--
   NST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 DD02/R     18:34  01:00   3.0   0    0    0   2.8  0.7   0    0    0
 JH06/R     01:00  07:03   6.1   0    0    0    0    0   0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Coughlin
 The night started out mostly clear, with opaque clouds moving in at 10pm.
 Since there was no threat of moisture, we didn't close until around 2am,
 but no science was able to be obtained after 10pm, so I've marked all time
 after 10pm as lost due to weather. At 5am humidity rose above closure
 limits so the observers called it a night.
 GFP had minor problems, including the return of the bit-flip problem, but
 did not result in loss of science time. No telescope problems.
                     ------- 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
 --------------------------------------------------------------------------
 18:53 dis-slit   248(  571)  42  28  11.9 13.6 12.6 12.4 12.7     1.50
 20:35 dis-slit    48(  256)  15  38  11.4 11.7 11.7 10.9 11.3     1.25
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    58    40     14   264    (W)    397 mstly clr    none
     17:00    59    41     22   273    (W)    456 mstly clr    none
     18:00    56    39     21   237  (WSW)    458    clear     none
     19:00    53    32     16   265    (W)    311 mstly clr    none
     20:00    53    32     15   250  (WSW)    357  ptly cldy   none
     21:00    53    34     13   249  (WSW)    434 mstly cldy   none
     22:00    52    35     13   261    (W)    427   cloudy     none
     23:00    52    35     21   263    (W)    562   cloudy     none
     00:00    51    38     14   241  (WSW)    629   cloudy     none
     01:00    51    39     16   248  (WSW)    612   cloudy     none
     02:00    49    41     14   238  (WSW)    764   cloudy     none
     03:00    48    42     12   245  (WSW)    744   cloudy     none
     04:00    48    42     18   266    (W)    792   cloudy     none
     05:00    47    44     14   259    (W)    880   cloudy    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: 2.11.1
     Current TUI version: TUI 1.6.2