Date: Sun, 18 Dec 2005 07:09:09 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20051217
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Saturday, December 17, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 D.York          D.York                 GFP            17:00  06:52
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 UC03/O      17:58  06:02   0    0    0    0   0.9 11.2   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st Half Observing Specialist: R.McMillan
 High cirrus at sunset became thicker and more widespread as the
 evening progressed.  We were able to cut through it for the most
 part, but it definitely had an effect on data collection.
 Telescope and instrument worked well.
 2nd Half Observing Specialist: J.Dembicky
 Clouds started getting a lot thicker around 23:50.  We kept trudging thru
 as it didn't appear they had precip.  They thinned back out around 02:00.
 No Problems 2nd half.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 18:00 GFP         -25(481)    5   62  -3.4/-3.2  224  11   6563  0.9
 18:10 NA2gdr      -2500(30500)16  60  -3.4/-3.4  229  11   R     1.25
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    30     8     14   257  (WSW)    860   ptly cldy    none
     17:01    26     8     10   241  (WSW)    886   ptly cldy    none
     18:01    26     9     11   229  (SW)    1016   ptly cldy    none
     19:01    26     9      9   198  (SSW)    809   ptly cldy    none
     20:01    27     9      9   189  (S)      805   ptly cldy    none
     21:01    28     5      8   197  (SSW)    630   ptly cldy    none
     22:01    28     5     11   248  (WSW)    495   ptly cldy    none
     23:01    27    11     11   236  (SW)     674   ptly cldy    none
     00:01    28    14     10   249  (WSW)    713    Cloudy      none
     01:01    29    15     10   248  (WSW)    656    Cloudy      none
     02:01    29    15      8   255  (WSW)    685   Pt. Cldy     none
     03:01    29    15     11   261  (W)      623     Clear      none
     04:01    28    15     12   239  (WSW)    686     Clear      none
     05:01    27    17     11   211  (SSW)    827     Clear      none
     06:01    28    17     14   227  (SW)     772     Clear      none
     07:01    27    16     15   216  (SW)     726     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 TCC version: 2.8
      Current TUI version: TUI 1.1