Date: Mon, 25 Oct 2004 07:18:01 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20041024
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Sunday, October 24, 2004
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 L.Walkowicz  L.Walkowicz               DIS            20:15  23:00
 P.McGehee    G.Stringfellow, P.McGehee DIS            --:--  --:--
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW10/R      19:14  01:00   0   3.0   0    0    0   2.8   0    0    0
 NM04/R      01:00  06:21  1.6  3.7   0    0    0    0    0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Clouds started the night, even though little was showing up on radar.
 During checkout I noticed 4 bad magnasensor readings on the first slew.
 The second long slew cleared them, but I slewed a couple more times to be
 sure.
 I delayed opening until around 20:05 due to clouds that looked thick at
 sunset.  We had about an hour of mostly clear skies and then the system
 to our South started moving in.  By 23:00 we were pretty well socked in with
 thick cirrus and I decided to close shortly thereafter.
 Around midnight the fog started rolling in.  We never re-opened the
 remainder of the night.
                      ------- 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
 ---------------------------------------------------------------------
 20:28  DISslit       -50(1097) 94  66   6.6/8.4    241  16  none  0.9
 20:29  NA2gdr     -3500(29600) 95  65   6.8/8.4    235  17  R+ND2 0.8
                ------------- WEATHER LOG ----------------
                                  Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    51    36     18   215  (SW)     326   Mst. Cldy   none
     17:01    47    37     14   264  (W)      291   Mst. Cldy   none
     18:01    48    38     18   250  (WSW)    270   Mst. Cldy   none
     19:01    45    37     16   217  (SW)     298   Mst. Cldy   none
     20:01    44    37     15   200  (SSW)    451    Pt. Cldy   none
     21:01    46    37     15   225  (SW)     406    Mst. Clr   none
     22:01    45    37     17   242  (WSW)    395    Pt. Cldy   none
     23:01    46    37     14   212  (SSW)    402   Mst. Cldy   none
     00:01    44    40     15   207  (SSW)    552     Cloudy    fog
     01:01    44    43     14   202  (SSW)    780     Cloudy    fog
     02:01    45    45     22   212  (SSW) 219755     Cloudy    fog
     03:01    44    44     17   217  (SW)  402007     Cloudy    fog
     04:01    42    41     22   234  (SW)     910     Cloudy   none
     05:01    45    37     16   255  (WSW)    270     Cloudy   none
     06:01    46    36     10   264  (W)      307     Cloudy   none
     07:01    45    38      6   273  (W)      432     Cloudy  Lt. Rain
     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 0.92