From: Russet McMillan
Subject: 3.5m Night Log 20040310
Date: Thu, 11 Mar 2004 05:29:07 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Wednesday, March 10, 2004
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 D.Lamb          D.York                 DIS            19:05  00:05
 K.Covey         K.Covey                DIS            00:07  03:10
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UC04/R      19:01  00:15   0    0    0    0   3.4  1.8   0    0    0
 UW06/R      00:15  05:25   0   2.3   0    0    0   2.9   0    0    0
  note: scheduled times listed include instrument change time
                   ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: W.Ketzeback
 I had the telescope cooling early and on the sky and focused by the time
 Don arrived. The seeing started out excellent however degraded within an
 hour after 12 degree twilight. Cloud cover was thin to moderate throughout
 all of first half. At 2330 it became too thick to observe the object and the
 observer switched to cals.
 2nd Half Observing Specialist: R.McMillan
 The second half observer had some bright objects that could be
 reached through clouds.  Around 01:30 the clouds thinned, the wind
 picked up, the humidity started to rise, and the seeing poofed to 3
 arcseconds.  A litte after 03:00 the humidity reached the limit, and
 we closed.
                       ------- FAILURE LOG -------
 PROG   INST   FAILURE MODE     TIME
      (SEGDFVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 18:44 dis-slit    30(1267)    40  73  9.3/10.8   340  2    -     0.78
 18:46 NA2gdr      -6(46993)   38  73  9.3/10.7   325  2    R     0.81
                ------------- WEATHER LOG ----------------
                                Wind                       Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
    16:01    53    15     12   282  (WNW)    -     cloudy    none
    17:01    51    17      7   341  (NNW)    -     cloudy    none
    18:01    49    17      0    17  (NNE)    -     cloudy    none
    19:01    48    20      0    12  (NNE)    -     cloudy    none
    20:01    44    25     15    70  (ENE)    -     cloudy    none
    21:01    45    28     10    83  (E)      -     cloudy    none
    22:01    46    24      6    74  (ENE)    -     cloudy    none
    23:01    45    26     11    79  (ENE)    -     cloudy    none
    00:01    45    22     13    85  (E)      -     cloudy    none
    01:01    44    23     16   111  (ESE)    -    ptly cldy  none
    02:01    37    30     21    72  (ENE)         ptly cldy  none
    03:01    36    31     18    83  (E)           ptly cldy  none
    04:01    33    30     24    73  (ENE)         ptly cldy  none
    05:01    30    30     22    82  (E)           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.
    Note: The weather tower dust counter is out of commision
                                TELESCOPE STATUS
    Telescope drives operational. Current Remark version: 2.85b
    Current guide software version: guider v4.1b4
    Current TCC version: 2.7.2  Current TUI version: TUI-0.841