From: Russet McMillan
Subject: 3.5m Night Log 20060411
Date: Wed, 12 Apr 2006 06:42:03 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Tuesday, April 11, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 J.Fulbright     J.Fulbright            Echelle        19:45 01:00
 C.Laws          C.Laws,M.Schmieding,   Echelle        01:02 06:15
             C.Matthieson,A.Krobelski
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 JH03/R      20:26 01:00    0    0    0    0    0   4.6   0    0    0
 UW09/R      01:00 05:42    0    0    0    0    0   4.7   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Clear skies all night, with seeing ranging from mediocre to very
 good.  Despite the difficulties of measuring image quality with
 objects mostly behind the echelle slit, I was able to do some tests
 during the period of good seeing that strengthen the evidence for a
 connection between the tertiary wobbles and the recent image
 elongation we've been seeing.
 There was one hard crash of the echelle slitviewer ICC, requiring a
 power-cycle.  The spectrograph exposure continued during the reboot,
 so no time was lost.  Aside from that, we had no troubles.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 19:51 Echelle     198(361)    134 60  9.9/10.6   272  18   ND2   1.05
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    54    22     28   268  (W)     1141  ptly cldy   none
     17:01    57    26     25   266  (W)     1327  mstly clr   none
     18:01    55    14     18   264  (W)     1453  mstly clr   none
     19:01    53    13     19   222  (SW)    1205   clear      none
     20:01    50    13     12   272  (W)     1427   clear      none
     21:01    49    12     17   267  (W)     1474   clear      none
     22:01    50    13      6   266  (W)     1453   clear      none
     23:01    50    12     12   264  (W)     1547   clear      none
     00:01    50    12     10   293  (WNW)   1628   clear      none
     01:01    49    11      9   272  (W)     1601   clear      none
     02:01    49     9     10   304  (NW)    1519   clear      none
     03:01    49     7     12   303  (WNW)   1482   clear      none
     04:01    48     7     12   297  (WNW)   1561   clear      none
     05:01    48     6     11   298  (WNW)   1409   clear      none
     06:01    48     7     11   328  (NNW)   1492   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: 2.8.2
      Current TUI version: TUI 1.1