From: Russet McMillan
Subject: 3.5m Night Log 20070926
Date: Thu, 27 Sep 2007 06:00:35 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                      Wednesday, September 26, 2007
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)              INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 M.Shin         M.Shin                   DIS           19:10  00:02
 T.Murphy       R.McMillan               APOLLO        00:10  01:00
 G.Stringfellow G.Stringfellow           Echelle, DIS  01:05  05:15
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 PU04/R     19:48  00:05    0    0    0    0    0   4.3   0    0    0
 UW12/O     00:05  01:05    0    0    0    0    0   1.0   0    0    0
 CU05/R     01:05  06:01    0   0.8   0    0    0   4.2   0    0    0
  note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Mostly clear.  Good to moderate seeing.  One pointing challenge
 (tertiary) with the echelle, and one pointing challenge
 (magnesensors) with DIS -- both resolved quickly, but the rate of
 errors merits a closer look.
 Closed before morning twilight due to rising humidity.
                      ------- 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
 ------------------------------------------------------------------------
 19:34 dis-slit   -34(  426)  96  52  13.9 15.1 14.6 13.8 13.6   -  1.2
 21:11 dis-slit  -152(  235)   7  58  12.4 13.5 13.7 12.3 12.8   -  1.1
 00:16 APOLLO  -102( 1028)  28  71  12.8 12.3 12.7 12.0 12.6   -  1.0
 01:20 ECHELLE  -130( -544) -99  26  12.6 12.3 12.7 11.6 12.2   -  1.4
 03:16 dis-slit  -110(  197) 175  62  12.1 11.6 12.0 11.0 11.7   -  1.1
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    62    39      7   274    (W)    542    clear     none
     17:00    60    41     10   314   (NW)    567    clear     none
     18:00    60    42     13   300  (WNW)    633    clear     none
     19:00    57    40      8   292  (WNW)    608    clear     none
     20:00    57    40      6   269    (W)    601    clear     none
     21:00    56    43      4   191    (S)    665    clear     none
     22:00    55    44      3   181    (S)    674    clear     none
     23:00    53    45      1   189    (S)    687  ptly cldy   none
     00:00    55    46      8   190    (S)    651  ptly cldy   none
     01:00    55    44      8   219   (SW)    638    clear     none
     02:00    54    48      8   182    (S)    848    clear     none
     03:00    54    46      7   200  (SSW)    675    clear     none
     04:00    54    48      7   216   (SW)    776    clear    humid
     05:00    53    48      6   193  (SSW)    853    clear    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: 2.9.1
     Current TUI version: TUI 1.4