Date: Fri, 17 Aug 2007 11:16:37 -0000 (UTC)
Subject: 3.5m Night Log 20070816
From: jdavenport@apo.nmsu.edu
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Thursday, August 16, 2007
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)              INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 Hart,Q.        Hart,Q.                  DIS           20:15  01:05
 Frieman,J.     Marriner,J.              DIS           01:05  05:10
 INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 CU02/R     20:44  01:05    0    0    0    0   3.3   1    0    0    0
 UC01/R     01:05  05:31   1.9   0    0    0   2.5   0    0    0    0
  note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialists: J. Davenport
Tonight is my last scheduled night to be the obs-spec. Mostly smooth
sailing. Opened on time, first half went fine. Had to close from 02:13
till 04:05 for high humidity. Dewpoint-diff leveled off  at ~2.9 at about
4am and stayed there, so we opened back up. But partial clouds kept us
from getting any science, gave up at 5:10. No problems found!
                      ------- 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
 ----------------------------------------------------------------------
 20:30 DISslit    -113(437) 106 60  15.1 18.0 16.7 17.1 15.4   -   1.5
 04:11 DISslit      22(411) 28  54  12.8 12.7 12.8 13.5 12.6   -   1.2
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    66    38      8    88    (E)    649    clear     none
     17:00    67    40     12    55   (NE)    659    clear     none
     18:00    66    42     12   108  (ESE)    700    clear     none
     19:00    63    46     10   105  (ESE)    888    clear     none
     20:00    60    47     11    82    (E)   1066    clear     none
     21:00    59    47     14    86    (E)   1105 mstly clr    none
     22:00    58    48     16    74  (ENE)   1120 mstly clr    none
     23:00    58    48     20    78  (ENE)   1483  ptly cldy   none
     00:00    58    49     22    76  (ENE)   1525    clear     none
     01:00    56    50     15    79    (E)   1865    clear     none
     02:00    55    50     18    78  (ENE)   2059  ptly cldy  humid
     03:00    54    51     20    75  (ENE)   2197 mstly clr   humid
     04:00    55    50     20    83    (E)   2142  ptly cldy   none
     05:00    55    50     10    80    (E)   2142  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: 2.9.1
     Current TUI version: TUI 1.3