From:
Subject: 3.5m Night Log 20101008
Date: Sat,  9 Oct 2010 12:55:13 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Friday October 8, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 P.Kundurthy    P.Kundurthy             Agile         18:50  00:49
 J.Hughes       J.Hughes                SPIcam        00:54  06:48
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 UW02/R     18:47  01:00     0    0    0    0   5.9   0    0    0
 UW10/R     01:00  06:55     0    0   0.2   0   5.7   0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 An exceptionally lovely night, photometric throughout with seeing
 0.5 to 1 arcsecond.
 Pointing with Agile was significantly off, which I was expecting but
 hoped it wouldn't be quite so bad; the stars were off the field of
 view so I had to go to a very bright star to be certain of the
 identification.  I spent about 15 minutes correcting the pointing
 before we went on to observe, but since this was in twilight and
 didn't impinge on the observer's science I didn't count the time as
 lost.  The pointing correction brought the tertiary tilts closer to
 zero, and should be good for future observations at least until the
 engineering changes things around again.
 During second half we had a few motion errors with altitude.  The
 first occurrence only required a minute or two to correct, but the
 second time there was a cluster of errors recurring just when I
 thought I had cleared up the problem, so I did count that as lost
 time.  I checked for moth guts after the first instance and didn't
 see anything, but perhaps a moth might have caused the later cluster
 of problems.
 The Agile heartbeat stopped and needed a restart at the beginning of
 the night, after a successful checkout but before the observer
 started his cals; once observing started the instrument was fine.
                ------------- FAILURE LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
 UW10     S          T/H      5:15   5:25    Alt motion errors
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 19:47 AGILE   275(-1573) -72  51  11.5 12.0 11.9 11.4 11.6   r  0.51
 01:09 SPICAM   269(  674) -23  39  10.7 10.7 11.0 10.4 10.7   R  0.63
 03:22 SPICAM   225(  605) 148  33  10.6  9.9 10.2  9.5  9.7   R  0.95
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    59    35     17   248  (WSW)    527 mstly clr    none
     17:00    57    37      9   215   (SW)    601 mstly clr    none
     18:00    56    36     12   246  (WSW)    656 mstly clr    none
     19:00    52    32      8   241  (WSW)    548    clear     none
     20:00    52    32     12   223   (SW)    553    clear     none
     21:00    53    30     13   240  (WSW)    527    clear     none
     22:00    53    30     16   255  (WSW)    534    clear     none
     23:00    52    30     17   236   (SW)    503    clear     none
     00:00    51    29     13   244  (WSW)    487    clear     none
     01:00    52    21     12   266    (W)    370    clear     none
     02:00    51    19     10   265    (W)    313    clear     none
     03:00    50    19      6   282  (WNW)    260    clear     none
     04:00    51    18      7   351    (N)    248    clear     none
     05:00    50    18      7   357    (N)    240    clear     none
     06:00    48    18      8    35   (NE)    249    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: 2.13.0
      Current TUI version: 1.8.2