From: Russet McMillan
Subject: 3.5m Night Log 20040208
Date: Mon,  9 Feb 2004 06:26:10 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Sunday, February 8, 2004
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 H.Osborne       H.Osborne              DIS            20:00  00:14
 M.Strauss       J.Hennawi              DIS            00:17  03:30
                                                       04:25  05:58
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 NM01/R      18:37  00:15  1.4   0    0    0   0.2  4.0   0    0    0
 PU05/R      00:15  05:58   0   0.9   0    0    0   4.8   0    0    0
  note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: J.Barentine
 Late afternoon was fairly clear at the site, but right around dark a band
of thick cloud moved over and stuck around until about 20:00.  I opened a
little before, sensing no danger of being precipitated upon, and waited
until the clouds thinned sufficiently to focus.  It was perfectly clear
from that time until around 23:15 as high, thin cirrus started moving in
from the west.  Everything seemed to run smoothly and quietly throughout
the remainder of the half.
 2nd Half Observing Specialist: R.McMillan
 Second half started out with thin cirrus which gradually thickened
 until, in combination with the moon, it prevented the observer from
 acquiring any of his very faint targets.  He stopped for a while,
 but since the weather was not threatening I took the opportunity for
 a little bit of engineering.  When the sky improved after 04:00, we
 returned to science, and by twilight the sky was mostly clear.
                        ------- 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
 ---------------------------------------------------------------------
 19:31 DISslit     0(723)      147 79  -1.8/-1.0  271  8    -     1.49
                  ------------- WEATHER LOG ----------------
                                 Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    32    -3      3   275  (W)           MstlyClr    none
     17:01    32     2     16   276  (W)           MstlyClr    none
     18:01    29    -2     11   282  (WNW)        MstlyCldy    none
     19:01    29    -5      6   278  (W)          MstlyCldy    none
     20:01    29    -2      8   241  (WSW)        MstlyCldy    none
     21:01    28     0      7   261  (W)           MstlyClr    none
     22:01    28    -1      8   241  (WSW)          Clear      none
     23:01    29    -4     11   264  (W)           MstlyClr    none
     00:01    29    -3     11   296  (WNW)         MstlyClr    none
     01:01    29    -3     13   282  (WNW)          cirrus     none
     02:01    28    -5      8   262  (W)            cirrus     none
     03:01    27    -4      8   256  (WSW)         ptly cldy   none
     04:01    26    -1      9   216  (SW)          ptly cldy   none
     05:01    26    -2      9   211  (SSW)          cirrus     none
     06:01    26    -4      9   234  (SW)          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.
   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-0.82