From: Russet McMillan
Subject: 3.5m Night Log 20040128
Date: Thu, 29 Jan 2004 06:32:27 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                       Wednesday, January 28, 2004
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 T.Harrison      T.Harrison             DIS            --:--  --:--
 M.Strauss       J.Hennawi              DIS            00:20  06:07
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 NM06/R      18:28  00:15   0   5.8   0    0    0    0    0    0    0
 PU05/R      00:15  06:05   0   0.1   0    0   5.5  0.3   0    0    0
  note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: J.Barentine
 Soupy clouds over the site from late afternoon through the duration of
first half.  Tom gave up at about 22:15 once he had decided the situation
was hopeless.
 2nd Half Observing Specialist: R.McMillan
 The clouds thinned around midnight enough for us to open and observe
 some brighter targets.  After 03:00 it became mostly clear.  Seeing
 was around or below an arcsecond for most of second half.
 We did not notice until too late that the wrong gratings were in
 place for the second half observer; rm+bm instead of rm+bl.  This did
 not hinder the science, but it's a mistake that we will have to try
 to avoid in future.
                        ------- 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
 ---------------------------------------------------------------------
 00:52 DISslit     50(765)     206 60  -1.7/-2.0  325  16   -     0.95
 00:53 NA2gdr      0(47000)    206 60  -1.7/-2.0  325  16   clear 0.82
                   -------------- WEATHER LOG ----------------
                                 Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    31     9      3   270  (W)          PtlyCldy     none
     17:01    30     8      1   335  (NNW)        MstlyCldy    none
     18:01    30     8      3   322  (NW)         Overcast     none
     19:01    30     8      7   298  (WNW)        Overcast     none
     20:01    30     9      7   305  (NW)         Overcast     none
     21:01    29     9      6   290  (WNW)        Overcast     none
     22:01    29    12      7   287  (WNW)        Overcast     none
     23:01    29    12      8   297  (WNW)        Overcast     none
     00:01    29    11      5   290  (WNW)        mstly cldy   none
     01:01    29    11     18   299  (WNW)        mstly cldy   none
     02:01    27     9     11   300  (WNW)        ptly cldy    none
     03:01    26     9      7   285  (WNW)        mstly clr    none
     04:01    25     8      9   330  (NNW)        mstly clr    none
     05:01    25    11     11   322  (NW)           clear      none
     06:01    25    12      8   312  (NW)           clear      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 Remark version: 2.85b
   Current guide software version: guider v4.1b4
   Current TCC version: 2.7.2  Current TUI version: TUI-0.81