From: Russet McMillan
Subject: 3.5m Night Log 20041204
Date: Sun,  5 Dec 2004 01:14:58 -0700 (MST)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Saturday, December 4, 2004
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 P.Yoachim       P.Yoachim               DIS           --:--  --:--
 T.Goto          K.Chiu                  DIS           --:--  --:--
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW05/R      17:54  00:00  6.1   0    0    0    0    0    0    0    0
 JH04/R      00:00  05:54   0   5.9   0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                   ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Heavy snow (3 inches), fog, high winds.  Did some tests of DIS
 noise, or lack thereof.  I'm beginning to think high-frequency
 pattern noise actually originates in the sky and is focused onto
 instruments by our telescope optics.  At least, SPIcam, DIS, and
 NIC-FPS all seem to point that way.
                      ------- 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
 ---------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    35    11     12   191  (S)      135   cloudy     none
     17:01    33    16     15   212  (SSW)    237   cloudy    lt rain
     18:01    30    29     13   191  (S)    75045   cloudy     snow
     19:01    32    32     11   242  (WSW)  11276   cloudy     snow
     20:01    32    31     13   259  (W)    16585   cloudy     snow
     21:01    31    31     14   235  (SW)   14152   cloudy     snow
     22:01    32    31     14   239  (WSW)   5125   cloudy     none
     23:01    32    30     17   203  (SSW)    384   cloudy     none
     00:01    32    31     20   208  (SSW)   4665   cloudy     fog
     01:01    32    32     34   206  (SSW)  12117   cloudy   fog,snow
     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