Date: Tue, 28 Nov 2006 04:08:04 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20061127
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Monday, November 27, 2006
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT   START  FINISH
 -------------------------------------------------------------------
 J.Friemann      A.Becker                SPIcam       --:--  --:--
 A.Mukadam       A.Mukadam               DIS          --:--  --:--
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UC01/R      17:54  00:00  0.3  5.8   0    0    0    0    0    0    0
 UW05/R      00:00  05:48  5.8   0    0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 During checkout tonight I did a quick check of the AZ and Alt vel scale,
 since the temp was around -1C and things were getting cooler.  Velocity
 scales both looked good compared to their current values and I made no
 changes.  Bill's scripts made short order for the work involved.
 We got about 1/4-1/2 inch of grapply white stuff.  I turned the roof
 heaters on until about 1AM when I went up to check the roof.
 Unfortunately there was still a buildup of snow/ice pellets on the roof.
 With the primary above freezing I felt it prudent to stay closed (even
 if the humidity dropped below closure limits, which it hadn't yet at
 1AM).  If it is clear tommorow during the day, the sunlight should take
 care of the remaining snow/ice.
 I noticed on the Dataq that the primary (A,B,C load cells) had some noise
 in them even while the telescope was off.  Might not be a bad idea to
 relax the primary during the daytime.
 I checked the roof at 03:40 and we still had too much snow (and I also
 saw some drifts) so I called the night over.
 I parked the telescope due S with the roof heaters on.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 ----------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:01    33    33     24   267    (W)  20418    cldy    everything
     17:01    31    31     32   233   (SW)   8599    cldy    everything
     18:01    31    30     19   260    (W)    295    cldy      snow
     19:01    31    31     18   256  (WSW)    345    cldy       fog
     20:01    31    31     29   267    (W)    353    cldy      none
     21:01    30    29     26   249  (WSW)    487    cldy      none
     22:01    30    28     25   251  (WSW)    465  pt. cldy    none
     23:01    30    29     27   253  (WSW)    522  mst. clr    none
     00:01    28    27     22   269    (W)    650    clear     none
     01:01    28    25     27   265    (W)    814    clear     none
     02:01    27    25     25   262    (W)    885    clear     none
     03:01    27    24     25   252  (WSW)    887    clear     none
     04:01    28    22     20   251  (WSW)    647    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: 2.8.4
      Current TUI version: TUI 1.2