Date: Thu, 19 Aug 2010 05:12:50 -0600 (MDT)
Subject: 3.5m Night Log 20100818
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                      Wednesday August 18, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 A.Brown        A.Brown                 Echelle       --:--  --:--
 T.Marriage     M.Hilton                NICFPS        --:--  --:--
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 CU02/R      19:53 01:05     0   5.2   0    0    0    0    0    0
 PU04/O      01:05 06:21    4.5  0.8   0    0    0    0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
Spicam temp 173.K @ 15:30
Spicam temp K @ @
I cleaned the AZ drive surface this afternoon.  There were a few squished moths on it.
Clouds and the threat of rain kept us closed first half.  Clouds dissapated for 2nd half but then
the humidity was right at the closure limits which kept us closed.
We gave up at 04:40 due to humidity and clouds.
04:41 (10:41UT) the Az drive started having lots of errors (as seen on the Dataq az_error and
az_current) while slewing to the telescope park position.  I didn't hear anything from the
intermediate intercom but the drive eventually had a building collision (although it wasn't on
either crash switches when I went up to the intermediate level to investigate) but that stop
button was lit.  Pressing a stop button and restarting the drives seemed to fix the problem.  I
slewed the telescope in az a few times and all was fine (I didn't hear any noises either while I
was slewing it up in the dome).
                ------------- FAILURE LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   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
    -------------------------------------------------------------------
     16:00    57    49     21    41   (NE)          cloudy     rain
     17:00    62    52     10    66  (ENE)          cloudy     none
     18:00    64    51      6   108  (ESE)    585   cloudy     none
     19:00    62    54      9    80    (E)    786   cloudy     none
     20:00    60    54      7    89    (E)    677   cloudy     none
     21:00    59    51      8   358    (N)    515 mstly cldy   none
     22:00    56    53     12    30  (NNE)   3810 mstly cldy   none
     23:00    58    51     12    33  (NNE)    854 mstly cldy   none
     00:00    60    51     11   127   (SE)    892 mstly cldy   none
     01:00    58    51     10   177    (S)    869  ptly cldy   none
     02:00    58    52     11   181    (S)   1360  ptly cldy  humid
     03:00    58    53     12   158  (SSE)   1385 mstly clr   humid
     04:00    58    54     11   173    (S)   1686 mstly cldy  humid
     05:00    58    54     11   187    (S)   1568 mstly cldy  humid
     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: 2.13.0
      Current TUI version: 1.8.1