From: Russet McMillan
Subject: 3.5m Night Log 20060616
Date: Sat, 17 Jun 2006 05:21:23 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                          Friday, June 16, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 P.Szkody        P.Szkody               DIS            20:45  00:58
 S.Snedden   S.Snedden,E.Malanushenko,  DIS            01:00  04:00
                 V.Malanushenko
 M.Klaene        R.McMillan             DIS            04:10  05:00
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW06/R      21:17 01:00    0    0    0    0   3.2  0.5   0    0    0
 DD06/O      01:00 04:00    0    0    0    0    0   3.0   0    0    0
 EN01/O/D    04:00 04:51    0    0    0    0    0   0.8   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 A lovely night with photometric skies all through and good to
 moderate seeing.  Everything generally behaved well; we did have one
 rotator overcurrent which was resolved within a minute.  A little
 difficulty guiding was later traced to user error (mine).
 Everything went so smoothly for the second half observers that they
 ran through their target list sooner than expected and kindly
 allowed me the last hour of the night for throughput measurements.
 I was able to get observations that should be possible to calibrate
 absolutely for both the old low resolution gratings (a measure of
 changes in the telescope) and the new blue medium grating (a measure
 of the new grating, and a tie to future throughput measurements for
 the telescope).
                       ------- 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
 ---------------------------------------------------------------------
 20:46 DISslit     50(1294)    -60 57  15.9/17.0  243  11   -     1.0
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    68    26     20   268    (W)   1942    clear     none
     17:00    64    21     10   265    (W)   2057    clear     none
     18:00    68    24     14   270    (W)   2158    clear     none
     19:00    64    21     10   267    (W)   2259    clear     none
     20:00    62    19     19   265    (W)   1784    clear     none
     21:00    61    17     16   245  (WSW)   2006    clear     none
     22:00    59    16     15   267    (W)   2041    clear     none
     23:00    59    17     14   261    (W)   1927    clear     none
     00:00    58    15     17    16  (NNE)   2251    clear     none
     01:00    58    17     14    11    (N)   1384    clear     none
     02:00    57    18     12    12  (NNE)   1148    clear     none
     03:00    56    20     14    11    (N)   1004    clear     none
     04:00    56    22     17    14  (NNE)    783    clear     none
     05:00    56    20     14    41   (NE)    328    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: 2.8.4
      Current TUI version: TUI 1.2