From:
Subject: 3.5m Night Log 20100402
Date: Sat,  3 Apr 2010 12:12:03 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Friday April 2, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 A.Kowalski     A.Kowalski              DIS           19:40  01:05
 T.Murphy       R.McMillan              APOLLO        01:10  02:08
 M.Strauss      M.Shin,M.Oguri          DIS           02:12  06:10
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 UW01/R     19:33  01:10     0    0    0    0   4.1  1.5   0    0
 DD01/O     01:10  02:10     0    0    0    0    0   1.0   0    0
 PU08/R     02:10  06:40     0   0.5   0    0    0   4.0   0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Tonight we had varying clouds (mostly thin) with moderate seeing.
 The telescope and instruments behaved well, for the most part.  The
 DIS slitviewer shutter was a little sticky during the first focus
 despite having been exercised previously, but it worked well during
 observing.  Tracking was noticeably better with APOLLO than during
 recent runs, and we were able to get data from the moon despite high
 airmass and some thin clouds.  During second half, there was a
 period of heavier clouds when the observers obtained no data, but
 for the most part they were able to find backup targets bright
 enough to observe.
                ------------- FAILURE LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 20:13 dis-slit   264(  -75) 120  56   0.4  1.0  0.7  0.2  0.5     1.30
 01:12 APOLLO   100(  487)  11  45   0.1 -0.7 -0.3 -1.2 -0.6       1.20
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    33     5     20   273    (W)    954  ptly cldy   none
     17:00    35     5     22   294  (WNW)   1036  ptly cldy   none
     18:00    36     5     17   286  (WNW)   1077  ptly cldy   none
     19:00    34     5     20   293  (WNW)   1141  ptly cldy   none
     20:00    33     3     13   305   (NW)   1295  ptly cldy   none
     21:00    32     3      9   269    (W)   1303  ptly cldy   none
     22:00    31     4     13   234   (SW)   1246 mstly clr    none
     23:00    32     6      7   261    (W)   1364 mstly clr    none
     00:00    31     7      5   265    (W)   1430 mstly clr    none
     01:00    32     8     10   234   (SW)   1555  ptly cldy   none
     02:00    33     6     13   223   (SW)   1569  ptly cldy   none
     03:00    34     7     18   242  (WSW)   2199 mstly cldy   none
     04:00    36    11     15   264    (W)   2818 mstly cldy   none
     05:00    34    13     13   266    (W)   2503  ptly cldy   none
     06:00    35    14     16   278    (W)   2572  ptly cldy   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: 2.11.1
      Current TUI version: 1.7.1