Date: Tue, 22 Jan 2008 04:27:39 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20080121
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Monday, January 21, 2008
                                                           ACTUAL
  ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 --------------------------------------------------------------------
 M.Strauss        M.Shin                 NICFPS         17:30  04:00
   INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
  I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 PU04/R       18:22  06:07   0   2.1   0    0    0   9.7   0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 NICFPS again screwed up between checkout and the time (1hr) my observer
 started taking darks and my first focus exposure (actually the problem
 occured after their last dark and my focus exposure, 17:52 60s dark
 looked fine, 17:55 focus image had  problem of dark and bright
 vertical bar (2 very wide bars) in them.  A nicfps expose init fixed the
 problem. I suggested monitoring  their incoming data to watch for
 problems, but that we have seen this happen in the past only once during
 the night during the beginning for some unknown reason.
 07:12:xxUTC I did a MS.DUMP of AZ drive magnasensor errors.  noticed
larger
 >10" errors.  The telescope had been tracking object for several hrs.
 without slewing.  These seemed to be increasing as time went on.
 09:50:32UTC another MS.DUMP of the AZ drive, this one showed the last
 magnasensor error 10".
 11:06:05UTC another MS.DUMP of the AZ drive
 We gave up at 04:00 due to increasing clouds.
 No telescope problems other than the NICFPS problem at the start of the
 night.
                       ------- 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
 ----------------------------------------------------------------------
 17:54 NICFPS     52(223)  -48  46  -1.7 -1.1 -0.8 -1.8  -1.5  Ks   0.7
 18:57 NICFPS     34(190)  -61  36  -1.7 -1.6 -1.0 -1.9  -1.7  Ks   0.9
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
 ---------------------------------------------------------------------
     16:00    33     5     18   246  (WSW)   1467    clear     none
     17:00    30     6     21   268    (W)   1640    clear     none
     18:00    29     2     17   276    (W)   1262    clear     none
     19:00    29     4     15   262    (W)   1322   mst. clr   none
     20:00    30    -1     15   267    (W)   1152    cirrus    none
     21:00    31    -3     13   269    (W)    997    cirrus    none
     22:00    31    -1     13   275    (W)    906    cirrus    none
     23:00    30     1     13   275    (W)    992    cirrus    none
     00:00    30     3      9   263    (W)   1019    cirrus    none
     01:00    29     5     11   263    (W)   1003    cirrus    none
     02:00    28     6     11   264    (W)   1049    cldy      none
     03:00    28     6      9   239  (WSW)   1034    cldy      none
     04:00    30    -1     14   267    (W)    804    cldy      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: 2.9.1
      Current TUI version: TUI 1.4.4