Subject: 3.5m Night Log 20090625
Date: Fri, 26 Jun 2009 12:59:29 +0000 (UTC)
From: bketzeba@apo.nmsu.edu
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Thursday, June 25, 2009
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)         INSTRUMENT       START  FINISH
 ------------------------------------------------------------------
 J.Wisniewski    C.Grady             DIS              22:00  22:15
                                                      00:15  01:00
 A.Brown         A.Brown,A.Kowalski  DIS              01:05  06:00
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW11/R     21:19  01:05   1.4  1.6   0    0   0.8   0    0    0    0
 DD05/R     01:05  04:54    0    0    0    0   3.8   0    0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 Clouds kept us closed at the beginning of the night until 22:00 when it
 looked safe to open. I was able to focus but just as the telescope was
 turned over to the observers and they were setting up on their field
 an orographic system formed quickly within 10 minutes over the site
 making the skies opaque again. We were forced to close due to rain
 but we were able to reopen at 00:15. Orographic clouds quickly forming
 and then being pushed away from the site by a high pressure system to
 east was bothersome all night. We wer able to remain open for the
 remainder fo the night.
 At 06:35 while I was closing up and filling instruments there was a
 loss of utility power. The enclosure controller had faulted as a
 result. I reset it.
 No other 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
 --------------------------------------------------------------------------
 22:04 dis-slit  -125(  407)  97  69  16.3 19.0 18.0 18.2 16.9   ---  1.37
 00:15 dis-slit   -76(  389)  -2  31  15.1 16.7 16.2 15.9 15.4   ---  1.90
 01:04 dis-slit    32(  391) -23  79  14.9 15.5 15.4 14.9 14.8   ---  1.69
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    66    47     11   140   (SE)   1518   cloudy     none
     17:00    67    46     14   142   (SE)   1405   cloudy     none
     18:00    68    45     11   146   (SE)   1372   cloudy     none
     19:00    66    44      9   157  (SSE)   1320   cloudy     none
     20:00    64    45     12   134   (SE)   1420   cloudy     none
     21:00    63    45     12   169    (S)   1438  ptly cldy   none
     22:00    62    46     17   144   (SE)   1577   cloudy     rain
     23:00    61    45     15   134   (SE)   1505   cloudy     none
     00:00    60    45     22   126   (SE)   1573  ptly cldy   none
     01:00    59    45     24   123  (ESE)   1662  ptly cldy   none
     02:00    58    45     20   135   (SE)   1736  ptly cldy   none
     03:00    57    46     19   147  (SSE)   1615    clear     none
     04:00    57    46     19   151  (SSE)   1713    clear     none
     05:00    57    45     15   154  (SSE)   1610    clear     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