Date: Mon, 6 Jul 2009 05:38:50 -0600
Subject: Night Log 20090705
From: Jeff Coughlin
                     Apache Point Observatory
                     3.5m Telescope Night Log
                     Sunday, July 5, 2009
                                                        ACTUAL
 ASTRONOMER     OBSERVER(S)              INSTRUMENT  START  FINISH
 --------------------------------------------------------------------
 T.Yan          T.Yan                      TSPEC     23:00  23:50
 T.Murphy       R.McMillan                 APOLLO    00:02  00:27
 T.Harrison     T.Harrison                  DIS      00:40  02:17
                                                     03:00  04:40
  INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 CU01/R     21:18  00:05    0   1.8   0    0    0   1.0   0    0    0
 UW14/R     00:05  01:05    0   1.0   0    0    0    0    0    0    0
 NM05/R     01:05  04:58    0   1.0   0    0    0   2.9   0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
Observing Specialist: J. Coughlin
Had heavy clouds and a good amount of rain from sunset till around 22:30
when it began to clear. I opened up at 23:00 to partly cloudy, but
non-threatening skies. Switched to Apollo on-time, but they gave up
early due to cloudy conditions and spotter no-show, (so I counted it as
lost to weather.) I was able to stay open and we got some data on bright
objects through holes in the clouds until 02:20 when I closed again due
to totally opaque skies. Observer took cals. I re-opened at 03:00 when
some holes starting coming through again and we got useful data. Had to
close at 04:40 just before 12 degree twilight due to increasing
humidity.
I was plannning on doing more Agile scattered light tests 2nd half from
the forecast, but since we were able to be open I didn't get to it.
                      ------- 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
 -----------------------------------------------------------------
 00:48 dis-slit   171(  544) -14  40  14.7 15.1 15.2 14.6 14.8     1.40
 03:17 dis-slit    21(  287) -163  80  12.9 13.7 13.6 13.1 12.8     1.30
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    64    54      9   227   (SW)    670   cloudy     none
     17:00    62    56      9   234   (SW)    760   cloudy     none
     18:00    60    51      7   122  (ESE)    855 mstly cldy   none
     19:00    63    45      1   153  (SSE)    514 mstly cldy   none
     20:00    59    51      2   228   (SW)    746   cloudy   lt rain
     21:00    53    44     12    22  (NNE)    616   cloudy     rain
     22:00    54    42     17    88    (E)    916 mstly cldy lt rain
     23:00    60    42      8   350    (N)    641 mstly clr    none
     00:00    59    40      7   263    (W)    614  ptly cldy   none
     01:00    59    47      5   191    (S)    532  ptly cldy   none
     02:00    57    47      9   223   (SW)    548 mstly cldy   none
     03:00    55    49      8   193  (SSW)    620  ptly cldy   none
     04:00    54    50      7   192  (SSW)    524    clear     none
     05:00    54    52      4   233   (SW)    916 mstly cldy  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: 2.10.0
     Current TUI version: TUI 1.5.1