Date: Fri, 31 Dec 2004 06:24:39 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20041230
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Thursday, December 30, 2004
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 F.Hearty        F.Hearty, N.Cunningham NIC-FPS        17:20  05:55
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 EN02/O      18:05  06:08   0    0    0    0   2.8  9.2   0    0    0
  note: scheduled times listed include instrument change time
                   ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 The start of the night the humidity was near closure, but it did some
 weird drop and went from 84% to 38% and back to 50% in a matter of a few
 minutes.  Good news for observing.
 Temps rose the later part of the night and the telescope played catch up,
 this resulted in a little larger than normal focus values (but not too
 bad).  The observers did notice it and asked me about it.
 They had a problem with the filter wheel at the end of the night as well.
 They will look into fixing it and didn't leave me with much other info,
 other than the instrument shouldn't be used until fixed (I think because
 you can't change filters and not something more serious).
                      ------- 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
 ---------------------------------------------------------------------
 17:46  NIC-FPS     175(1302)  21  55   1.0/3.0    263   3  MK-J  0.96
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    37    29      6   268  (W)        0   cirrus     none
     17:01    36    30      5   268  (W)        0   cirrus     none
     18:01    36    14      7   258  (WSW)      0   cirrus     none
     19:01    37    11     11   305  (NW)       0   cirrus     none
     20:01    36    17      1   261  (W)        0   cirrus     none
     21:01    38     3      6   270  (W)        0   cirrus     none
     22:01    39     4     11   250  (WSW)      0   cirrus     none
     23:01    39     1      7   267  (W)        0   cirrus     none
     00:01    39     1      8   240  (WSW)      0   cirrus     none
     01:01    34    17      6   191  (S)        0   cirrus     none
     02:01    34    17      7   184  (S)        0   cirrus     none
     03:01    35    16      1   174  (S)        0   cirrus     none
     04:01    36     2      5   181  (S)        0   cirrus     none
     05:01    37    -4     11   222  (SW)       0   cirrus     none
     06:01    37   -11     11   236  (SW)       0   cirrus     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 Tower Dust counter appears to be down at this time
                              TELESCOPE STATUS
      Telescope drives operational. Current Remark version: 2.85b
      Current TCC version: 2.7.2  Current TUI version: TUI 0.932