Date: Tue, 5 Oct 2010 06:58:45 -0600 (MDT)
Subject: 3.5m Night Log 20101004
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Monday October 04, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 S.Moran        S.Moran                 SPIcam        --:--  --:--
 A.Verbiscer    A.Verbiscer             SPIcam        04:30  06:42
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 JH03/R     18:52  01:00    6.1   0    0    0    0    0    0    0
 UV02/R     01:00  06:52    3.5   0    0    0    0   2.4   0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 NICFPS ICS needed to be rebooted tonight.  Would take an exposure but stalled on readout.
 During checkout the altitude drive had problems.  I think they were magna-sensor related or
perhaps due to the UPS work today.  The Dataq showed large errors (I believe in the Alt) as I
started my initial slews.  This caused the drives to halt abruptly.  I heard something on the
intercom as well.  I tried another slew and it again halted.  I then went up into the dome to do
some slews in each axis.  It slewed fine in Azimuth.  The Azimuth slewed from about 50 deg down
to about 30 degrees and then it started making a noise and halted the drive about 1/2 second
later.  I cautiously slewed the telescope upward and it worked fine.  I then did several slews,
in both axis, with no problems.  If it happens again I will submit an official PR, but right now
it is difficult to re-create the problem.
Out of focus SPIcam image for Russet to check collimation.
/export/images/Q4APO/UT1010005/Out_of_focus_1000.0026
I checked and corrected pointing, at NA2, it wasn't too far off.
We seemed to be clearing the alt slip bit but not the az slip bit.
Seeing was medeocre and variable once we opened.
                ------------- 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
 -----------------------------------------------------------------------
 04:43 SPICAM    44(  362) -19  56   8.1  9.3  9.8  8.5  8.7   R  1.70
 04:49 NA2gdr  1095(31095) -21  55   7.8  9.2  9.7  8.4  8.6   clear  2.00
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     17:00    58    46     11   254  (WSW)    549 mstly cldy   none
     18:00    51    46     14   141   (SE)    693 mstly cldy   none
     19:00    49    45     13   112  (ESE)    648  ptly cldy  humid
     20:00    49    46     20   143   (SE)    612  ptly cldy  humid
     21:00    49    44     20   148  (SSE)    494  ptly cldy  humid
     22:00    48    44     21   143   (SE)    552   cloudy    humid
     23:00    45    45      1   283  (WNW)  18108   cloudy     rain
     00:00    44    44      6   162  (SSE)   1305   cloudy   lt rain
     01:00    48    41     15   186    (S)    776 mstly cldy   none
     02:00    48    42     17   155  (SSE)    925  ptly cldy   none
     03:00    47    41     10   184    (S)    930  ptly cldy   none
     04:00    47    39     15   169    (S)    984  ptly cldy   none
     05:00    47    39      7   180    (S)    627  ptly cldy   none
     06:00    49    40      4   177    (S)    608 mstly clr    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: 2.13.0
      Current TUI version: 1.8.1