Date: Sat, 21 May 2005 05:44:37 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20050520
                        Apache Point Observatory
                        3.5m Telescope Night Log
                          Friday, May 20, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 L.Walkowicz     L.Walkowicz            DIS            19:30 01:00
 G.Wallerstein   V.Woolf                Echelle        01:00 05:35
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW10/R      21:00 01:00    0    0    0    0    0   4.0   0    0    0
 UW12/R      01:00 05:00    0    0    0    0   0.6  3.4   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: B.Ketzeback
 First half went relatively smoothly. There was some confusion early in the
 night as to which slit was being used since but it turned out to be a
 contrast problem with such a bright star that the occulting bar could not
 be seen in the images. No other problems.
 2nd half Observing Specialist: J.Dembicky
 No problems during the 2nd half of the night with the echelle.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SEGDFNVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 20:55 dis-slit    25(1647)    167 77  17.8/19.9  149  19   -     0.96
 21:04 NA2gdr   -3500(21600)   177 77  17.6/19.3  137  24   R+nd2 0.94
 7:15  Echelle       50(675)  -128 75  15.2/15.2  139  15   ND2   1.35
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    77    30     12   223  (SW)     600   clear     none
     17:01    75    29      6   244  (WSW)    586   clear     none
     18:01    77    30      4   192  (SSW)    627   clear     none
     19:01    70    28     10   240  (WSW)    717   clear     none
     20:01    66    28     12   153  (SSE)    651   clear     none
     21:01    64    32     21   134  (SE)     918   clear     none
     22:01    61    32     18   122  (ESE)    957   clear     none
     23:01    60    32     21   124  (SE)     846 mstly clr   none
     00:01    60    32     22   131  (SE)     648 mstly clr   none
     01:01    59    32     18   127  (SE)     668   clear     none
     02:01    60    31      7   170  (S)      713   clear     none
     03:01    62    32      9   209  (SSW)    882   clear     none
     04:01    62    31      8   189  (S)      778   clear     none
     05:01    61    30      5   186  (S)      723   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 Remark version: 2.85b
      Current TCC version: 2.7.2  Current TUI version: TUI 0.94