Date: Thu, 8 Jun 2006 05:31:47 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20060607
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Wednesday, June 7, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 M.Mottini       M.Mottini,             Echelle        20:50  21:00
                 G.Wallerstein                         21:40  00:50
                                                       01:25  05:35
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UW11/O      21:13  04:52   0   0.9   0    0   1.4  5.4   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Lots of clouds during twilight but it appeared to be clearing so I
 decided to open.  I could see some Virga to the distance towards our
 South.  Before twilight ended the clouds to the South were a little too
 close for comfort and I decided to close the mirror covers after the
 first 5 minute science exposure and wait the clouds out.
 We re-opened at 20:50 and stayed open the remainder of the night
 (although around 00:50 my observers paused their exposure for about 30
 mins while we waited for the clouds to pass.).
 Everything ran smoothly tonight with no instrument or guider problems.
                       ------- 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
 ---------------------------------------------------------------------
 20:50  Echelle      1(508)   184  46  16.7/17.5   119  19  ND3   1.2
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     18:01    63    36     13   115  (ESE)   1134   Mst. Cldy   none
     19:01    65    35      9   130  (SE)    1198   Mst. Cldy   none
     20:01    63    33     18   126  (SE)    1216    Pt. Cldy   none
     21:01    62    34     21   120  (ESE)   1230   Mst. Cldy   none
     22:01    62    33     13   117  (ESE)   1141    Pt. Cldy   none
     23:01    61    34     19   120  (ESE)   1337    Pt. Cldy   none
     00:01    60    37     20   120  (ESE)   1487    Pt. Cldy   none
     01:01    59    38     30   127  (SE)    1593    Pt. Cldy   none
     02:01    58    40     20   150  (SSE)   1523    Pt. Cldy   none
     03:01    56    40     18   149  (SSE)   1811    Mst. Clr   none
     04:01    56    40     20   134  (SE)    2079    Mst. Clr   none
     05:01    56    40     21   142  (SE)    1796    Mst. Clr   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