From:
Subject: 3.5m Night Log 20090717
Date: Sat, 18 Jul 2009 12:21:07 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                          Friday, July 17, 2009
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 M.Shin         M.Shin,M.Oguri          DIS           --:--  --:--
 D.York         J.Barentine             DIS           --:--  --:--
 T.Murphy       R.McMillan              APOLLO        --:--  --:--
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 PU06/R     21:13  01:05   3.9   0    0    0    0    0    0    0    0
 UC04/R     01:05  04:59   1.0  2.9   0    0    0    0    0    0    0
 DD01/O     04:59  05:59    0   0.1   0    0    0    0    0    0    0
  note: scheduled times listed include instrument chanyes, some ge time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 We had rain and threat of rain first half, high humidity and high
 dust second half.  I spent a while doing tests with APOLLO in hopes
 of reproducing some intermittent problems, with limited success.  I
 did have some trouble with the eyelid for APOLLO, which has behaved
 as sort of a canary in the eyelid coalmine in the past -- apparently
 this canary isn't feeling very well.
 In addition, I did some tests of telescope tracking in possible
 trouble spots with the dome closed.  Although I saw some interesting
 behavior on the telemetry, it was obviously not possible to
 correlate this against actual sky tracking in the absence of a sky.
 I gave Fritz timestamps for these tests so that hopefully he can
 analyze the telemetry in more depth.
                ------------- ACTIVITY LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    72    48      8   184    (S)   4370   cloudy     rain
     17:00    59    47      7   189    (S)   3864   cloudy     none
     18:00    67    41      1     7    (N)   3168   cloudy     none
     19:00    66    44      7    53   (NE)   3712   cloudy     none
     20:00    65    45     13    82    (E)   3914   cloudy     none
     21:00    64    41     11   109  (ESE)   3071   cloudy     none
     22:00    64    35     20   128   (SE)   2195   cloudy     none
     23:00    62    36     15    86    (E)   2335   cloudy   lt rain
     00:00    60    38     16    81    (E)   2159   cloudy     none
     01:00    57    40     14    84    (E)   1875 mstly cldy   none
     02:00    53    45     17    83    (E)   7445 mstly cldy   none
     03:00    51    47     13    90    (E)   7434  ptly cldy   none
     04:00    51    46      8   105  (ESE)   7012  ptly cldy   none
     05:00    58    42      5   231   (SW)   5805  ptly cldy   none
     06:00    56    44      4   133   (SE)   5717  ptly cldy   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: 2.10.0
      Current TUI version: TUI 1.6