Date: Tue, 26 Jan 2010 06:08:58 -0700
Subject: 3.5m Night Log 20100125
From: Jeff Coughlin
                       Apache Point Observatory
                       3.5m Telescope Night Log
                      Monday, January 25, 2010
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 A.Ginsburg      A.Ginsburg             TSPEC          16:30  00:10
 Y.Shen            Y.Shen               TSPEC          00:10  06:30
   NST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 CU04/R     17:38  00:10    0    0    0    0    0   6.5   0    0    0
 PU09/R     00:10  06:53    0    0    0    0   3.2  3.5   0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Coughlin
 A mostly clear night with moderate seeing - we were open all night. There was
 some blowing snow a few hours after sunset along the ground that shut down
 Sloan, but it did not reach the height of the 3.5m dome, and along with
 mirror temps below freezing, we were able to stay open. Some thin
 clouds rolled in around 0400 and lasted till sunrise, but did not hinder
 science.
 Only problem tonight was a very minor hangup of triplespec, see PR #1087,
 but it did not result in a loss of science time.
                     ------- 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
 --------------------------------------------------------------------------
 17:44 TSPEC   647(  580) 167  61   0.5  0.6 -0.2  0.5  0.7     1.20
 18:46 TSPEC   297(  167) 184  62  -1.3 -0.7 -0.8 -1.1 -1.0     1.10
 21:48 TSPEC   147(   79) 213  48   1.3  0.3  0.8  0.2  0.8     1.30
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    32     3     13   357    (N)     69    clear     none
     17:00    35    13     14   341  (NNW)    139    clear     none
     18:00    32     7     10    16  (NNE)     98    clear     none
     19:00    30     5     18    12  (NNE)    115    clear     none
     20:00    31     8     18    12  (NNE)    121    clear     none
     21:00    32    11     18    29  (NNE)     72    clear     none
     22:00    35    18     10    20  (NNE)     42    clear     none
     23:00    33    18     12    21  (NNE)     19    clear     none
     00:00    34    20     15   344  (NNW)     28    clear     none
     01:00    33    20      9   332  (NNW)     42    clear     none
     02:00    34    19      8   354    (N)     47    clear     none
     03:00    34    19     15   322   (NW)     46    clear     none
     04:00    35    18     10   273    (W)     76  ptly cldy   none
     05:00    35    19      6   262    (W)     56  ptly cldy   none
     06:00    34    20      9   239  (WSW)     45 mstly 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: 2.11.1
     Current TUI version: TUI 1.7.0