Subject: 3.5m Night Log 20081028
Date: Wed, 29 Oct 2008 13:00:24 +0000 (UTC)
From: bketzeba@apo.nmsu.edu
                     Apache Point Observatory
                     3.5m Telescope Night Log
                    Saturday, October 28, 2008
                                                   ACTUAL
 ASTRONOMER     OBSERVER(S)         INSTRUMENT  START  FINISH
 --------------------------------------------------------------------
 J.Stockton     J.Stockton          DIS         17:50  01:00
 M.Shin         M.Shin,M.Oguri      DIS         01:00  06:45
  INST      SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM04/R     19:10  01:00    0    0    0    0   5.8   0    0    0    0
 PU02/R     01:00  06:25    0    0    0    0   5.4   0    0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 Clear skies with good to moderate seeing.
 Around 22:00 there was a false critical alert on the Aux tank of
 Triplespec. The tank had been filled yesterday, The instrument had
 not been moved or rotated since. The temperatures were in the
 nominal range the rest of the night.
 At 00:47 the observer tracked the telescope into the upper limit.
 Although this is not a terrible thing to reach the software limit
 the slew that followed resulted in the following error message:
 "Telescope is moving too fast. Stop the telescope, then try your
 slew again." The slew was a short distance and ended before any
 actions could be taken however the message was alarming.
 The error occured at UT06:47:19.
 No other problems tonight.
                      ------- 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
 -----------------------------------------------------------------
 19:44 dis-slit  -123(   35)  23  78   9.6 11.4 10.4 10.5  9.9   --  1.12
 01:04 dis-slit  -157( -157) -64  80   8.7  8.2  8.7  7.0  8.4   --  0.93
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    51    37      2   307   (NW)   1558    clear     none
     17:00    49    37      1   293  (WNW)   1524    clear     none
     18:00    50    27      7   356    (N)   1110    clear     none
     19:00    50    15     11    20  (NNE)    688    clear     none
     20:00    50    30     10    53   (NE)   1361    clear     none
     21:00    50    34      2   101    (E)   1632    clear     none
     22:00    49    31      1   194  (SSW)   1481    clear     none
     23:00    48    32      1   211  (SSW)   1690    clear     none
     00:00    48    27      1   227   (SW)   1222    clear     none
     01:00    48    25      1   255  (WSW)   1254    clear     none
     02:00    47    22      1   320   (NW)   1324    clear     none
     03:00    49    31      1   233   (SW)   1291    clear     none
     04:00    48    32      1   247  (WSW)   1569    clear     none
     05:00    48    32      1   293  (WNW)   1387    clear     none
     06:00    48    32      1   300  (WNW)   1393    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: 2.9.1
     Current TUI version: TUI 1.5.1