Date: Wed, 8 Dec 2004 06:24:00 -0700 (MST)
From: John Barentine
Subject: 3.5m Night Log 20041207
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Tuesday, December 7, 2004
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 D.Johnston      G.Miknaitis            SPIcam         17:15  23:17
 M.Agueros       M.Agueros              DIS            02:55  03:55
 D.Johnston      G.Richards             DIS            04:00  06:00
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 PU01/R      17:55  00:00  0.7   0    0    0   5.4   0    0    0    0
 UW07/R      00:00  03:56  2.9   0    0    0   0.1  0.9   0    0    0
 PU02/R      03:56  05:56   0    0    0    0    0   2.0   0    0    0
  note: scheduled times listed include instrument change time
                   ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Barentine
 Opened at 17:00 to cool.  We had a lot of sunshine today which helped
melt off accumulated snow and ice from the roof.  At sunset, skies were
mostly cloudy but the clouds were fairly thin cirrus.  The clouds got
progressively thick over the next several hours.
 Closed at 23:17 when Gajus gave up.  We reopened at a quarter to three
when the sky had virtually cleared and Marcel had about an hour on the
sky before Dave took over.  He had problems with his TUI so I assisted
in making the observations.
 Closed for the night at 06:00 barely into twilight.
                      ------- 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
 ---------------------------------------------------------------------
 17:50 SPIcam      100(1070)   205 56  -1.2/0.1   296  17   r'    0.93
 17:56 NA2gdr      -1716(35284)207 56  -1.1/-0.1  284  18   R     0.64
 19:58 SPIcam      100(1023)   205 54  -0.7/-1.1  274  11   r'    1.30
 22:31 SPIcam      50(958)     194 57  -1.1/-1.3  283  17   r'    0.87
 02:51 DISslit     -75(608)    212 79  -2.3/-2.1  355  10   -     0.98
                ------------- WEATHER LOG ----------------
                                   Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    31    11     13   290  (WNW)     63   PtlyCldy    none
     17:01    30     9     16   294  (WNW)     55   PtlyCldy    none
     18:01    31    10     14   288  (WNW)     28   PtlyCldy    none
     19:01    31    10     11   278  (W)       34   PtlyCldy    none
     20:01    31    10     13   282  (WNW)     35   MstlyCldy   none
     21:01    31     7     17   298  (WNW)     51   MstlyCldy   none
     22:01    30     9     11   295  (WNW)     37   MstlyCldy   none
     23:01    29    11     10   296  (WNW)     40   MstlyCldy   none
     00:01    30    10     18   284  (WNW)     45   MstlyCldy   none
     01:01    30     5     13   270  (W)       46   MstlyCldy   none
     02:01    30     9     10   267  (W)       56   MstlyCldy   none
     03:01    28    15     13   293  (WNW)    137   MstlyClr    none
     04:01    27    18     14   293  (WNW)    201   PtlyCldy    none
     05:01    26    19     14   269  (W)      239   PtlyCldy    none
     06:01    25    21     14   264  (W)      325   MstlyClr    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 TCC version: 2.7.2  Current TUI version: TUI 0.931