Date: Wed, 21 Oct 2009 06:46:02 -0600
Subject: 3.5m Night Log 20091020
From: Jeff Coughlin
                       Apache Point Observatory
                       3.5m Telescope Night Log
                      Tuesday, October 20, 2009
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 L.Winter        L.Winter                  DIS        --:--  --:--
 J.Rogers        J.Rogers                NICFPS       02:30  05:00
   NST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 CU04/R     18:33  01:00   5.0  1.4   0    0    0    0   0    0    0
 JH04/R     01:00  07:04   3.6   0    0    0   2.5   0   0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Coughlin
 Had thunderstorms entire first half, which began to clear by start of
 second half. Eventually the sky cleared, humidity dropped below closure
 limits and nearby radar returns disappeared, so I opened at 2:30am.
 Gathered useful data until 5:00am when humidity suddenly rose and clouds
 returned, upon which I closed, and conditions stayed humid through twilight.
 No telescope or instrument 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
 --------------------------------------------------------------------------
 03:56 NICFPS  -125(  253)  43  45   1.4  3.2  3.2  1.8  2.2     1.40
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    53    41     22   214   (SW)    788  ptly cldy   none
     17:00    52    41     21   200  (SSW)    791 mstly cldy   none
     18:00    47    37     21   236   (SW)   1526   cloudy    humid
     19:00    39    38     20   313   (NW)     74   cloudy   lt rain
     20:00    40    40     13   295  (WNW)   1201   cloudy     rain
     21:00    40    40     20   259    (W)    458   cloudy     rain
     22:00    37    37      9   262    (W)   1441   cloudy     rain
     23:00    35    34     20   262    (W)    657   cloudy   lt rain
     00:00    37    32     17   268    (W)    788   cloudy    humid
     01:00    36    33     15   282  (WNW)    826 mstly cldy  humid
     02:00    37    32     15   275    (W)    805 mstly clr    none
     03:00    36    31     15   259    (W)   1022 mstly clr    none
     04:00    35    31     16   247  (WSW)   1148    clear     none
     05:00    34    32     15   237  (WSW)   1156  ptly cldy  humid
     06:00    34    34     12   254  (WSW)  10380   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