Date: Sat, 25 Jul 2009 11:25:57 -0000 (UTC)
Subject: 3.5m Night Log 20090724
From: "Gabrelle Saurage"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Friday, July 24, 2009
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT     START  FINISH
 ------------------------------------------------------------------
 C.Wu            C.Wu                    DIS            23:02  01:03
 B.Fleming       B.Fleming,S.McCandliss  DIS            01:23  05:30
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 NM03/O     21:08  01:05   1.1  0.9   0    0   2.0   0    0    0    0
 JH01/R     01:05  05:12    0    0    0    0   4.1   0    0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: G.Saurage
Local radar activity and overcast skies kept us closed until about 11pm. The sky was
never clear, but improved as the night progressed. Dust levels got a little high
towards twilight. Moderate seeing.
No problems.
                       ------- 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
 --------------------------------------------------------------------------
 23:08 dis-slit   252( 755) 219  51  16.7 18.1 16.9 17.3 17.1     1.39
 01:40 dis-slit   211( 576)  72  74  15.3 15.6 15.6 14.7 15.2     1.66
 04:48 dis-slit   257( 595) 276  64  15.0 15.0 15.2 14.1 14.7     1.35
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    65    54      5   201  (SSW)   2986   cloudy     none
     17:00    66    51      6   126   (SE)   2445   cloudy     none
     18:00    67    49      5   131   (SE)   1925   cloudy     none
     19:00    63    51      9   151  (SSE)   2669   cloudy     none
     20:00    62    49     11   120  (ESE)   2074   cloudy     none
     21:00    62    50      8   144   (SE)   2575   cloudy     none
     22:00    61    49     13   125   (SE)   2530  ptly cldy   none
     23:00    62    45      4   171    (S)   1996 mstly clr    none
     00:00    59    45      6   128   (SE)   1437 mstly clr    none
     01:00    61    43      8   178    (S)   1420 mstly clr    none
     02:00    63    41      4   192  (SSW)   1439 mstly clr    none
     03:00    62    43      7   261    (W)   1191 mstly clr    none
     04:00    60    46      3   260    (W)   2265 mstly clr    none
     05:00    60    48      5   241  (WSW)   3432 mstly clr    dust
     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: 2.10.0
      Current TUI version: TUI 1.6