From: Russet McMillan
Subject: 3.5m Night Log 20060727
Date: Fri, 28 Jul 2006 05:20:38 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Thursday, July 27, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 -------------------------------------------------------------------
 S.Majewski      S.Majewski,             DIS          --:-- --:--
                 J.Miller,M.Chou
 N.Silvestri     N.Silvestri,S.Vennes    DIS          --:-- --:--
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 DDO3/O      21:06 01:10   3.3  0.8   0    0    0    0    0    0    0
 UW08/R      01:10 05:14   4.1   0    0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: G.Saurage
Complete overcast at sunset, rain in basin, heavy radar activity within
the county. Raining around 9pm. High humidity 9:45pm.  Fire alarm had
repeated ground faults around 11:45pm. Continued to get worse, raining
pretty hard rest of 1st half.
 2nd half Observing Specialist: R.McMillan
 We got about half an inch of rain, according to the COSMIC weather
 station.  The rain eased up after 02:00, but clouds and humidity
 remained.  Our dewpoint sensor was acting up; maybe a spider moved
 in.  But the Sloan dewpoint sensor was working, and the flashlight
 test failed very obviously, so it was easy to tell that the humidity
 was high.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    62    47      2   143   (SE)    268   cloudy     none
     17:00    63    53      1   202  (SSW)    241   cloudy     none
     18:00    65    50      1   227   (SW)    218   cloudy     none
     19:00    63    49      3   131   (SE)    209   cloudy     none
     20:00    60    51      1   143   (SE)    276   cloudy   lt rain
     21:00    62    48      6   196  (SSW)    297   cloudy     rain
     22:00    55    43     10   150  (SSE)   1101   cloudy     rain
     23:00    54    31     13    86    (E)    599   cloudy     rain
     00:00    53    31      8   111  (ESE)    197   cloudy     rain
     01:00    51    31     24    76  (ENE)    384   cloudy     rain
     02:00    52    31     12    82    (E)    350   cloudy   lt rain
     03:00    52    31      6   265    (W)    300   cloudy    humid
     04:00    51    30      2   270    (W)    384   cloudy    humid
     05:00    51    29      2   184    (S)    318   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: 2.8.4
      Current TUI version: TUI 1.2