Date: Sun, 23 Mar 2008 09:48:35 -0000 (UTC)
Subject: 3.5m Night Log 20080322
From: "Gabrelle Saurage"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Saturday, March 22, 2008
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 J.Wilson       R.McMillan, J.Wilson,    Triplespec   19:30  23:30
                M.Skrutskie, M.Nelson,
                S.Schmidt, G.Saurage
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 EN02/O     20:09  06:10    0   6.8   0    0   0.2  3.8   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: G.Saurage
Most of first half was very productive. The TripleSpec guider now guides!
We successfully got on sky and tried all three modes of guiding. Several
objects and several tests were accomplished before weather conditions
became an issue.
Dust levels had been high all night. At 23:00 dust and wind both began
rising over the limit, then clouds rolled in. By 23:30 we needed to close.
After that the weather conditions only worsened. By 3am we had high dust,
high winds, high humidity and the temperatures had significantly dropped
so we called it quits.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SAEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 ----------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    49     2      2   312   (NW)   2320    clear     none
     17:00    49     4      8   326   (NW)   2297    clear     none
     18:00    51     4     11   282  (WNW)   2497    clear     none
     19:00    46     0      4   272    (W)   2463    clear     none
     20:00    41    12     13    76  (ENE)   2568    clear     none
     21:00    40    14     18    77  (ENE)   2789    clear     none
     22:00    39    14     24    73  (ENE)   2742  ptly cldy   none
     23:00    37    17     17    55   (NE)   3132 mstly cldy   dust
     00:00    35    22     28    72  (ENE)   2909   cloudy     dust
     01:00    31    20     24    68  (ENE)   3475 mstly clr    dust
     02:00    28    24     35    69  (ENE)   4644 mstly clr    dust
     03:00    25    21     31    72  (ENE)   3420 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: 2.9.1
      Current TUI version: TUI 1.4.5