From:
Subject: 3.5m Night Lo 20090510
Date: Mon, 11 May 2009 12:04:24 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                          Sunday, May 10, 2009
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)            INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 D.York         D.York                 DIS             20:30  00:58
 T.Murphy       T.Murphy,R.McMillan    APOLLO          01:00  02:00
 J.Greene       J.Greene               Tspec           02:15  05:35
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UC05/R     20:51  01:05    0    0    0    0   0.8  3.4   0    0    0
 DD01/O     01:05  02:05    0    0    0    0    0   1.0   0    0    0
 PU09/R     02:05  05:08    0    0    0    0    0   3.1   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: G.Saurage
 Velocity scales unchanged for alt and az.
 The night was quite nice, photometric throughout with good to decent
 seeing most of the time.  We had an outflow boundary come through
 around 03:15, with a spike in humidity and dust and some very bad
 seeing, but then the wind shifted back around to the west and
 everything settled again.
 At the beginning of the night I had trouble with the rotator, which
 didn't move but didn't give any informative error messages.  Fritz
 logged in and restarted the rotator controller, and after that it
 worked well.
 We also had some repeats of ugly images with the Tspec slitviewer
 for long exposure times (45s), but in this case it was clear that
 the component images were indeed saturated.  Previously it seemed
 like the pre-subtract images weren't saturated, but perhaps that was
 confusion.  It was pretty clear this time, and shorter exposure
 times worked well.
                       ------- 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
 ------------------------------------------------------------------------
 20:42 dis-slit     8(  541)  48  66  16.3 19.0 18.0 17.6 17.0   -  1.10
 01:06 APOLLO  -100( 1231)  18  28  15.9 15.9 16.1 14.9 15.5   5000  1.50
 02:20 TSPEC    20(  683) -46  44  15.2 15.1 15.0 13.8 14.6   Ks  1.20
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    71    28      4   208  (SSW)   1768    clear     none
     17:00    72    28     11   263    (W)   1658    clear     none
     18:00    73    29     12   257  (WSW)   1315    clear     none
     19:00    69    25     10   249  (WSW)   1144    clear     none
     20:00    63    20     16   232   (SW)   1431    clear     none
     21:00    62    19     11   222   (SW)   1282    clear     none
     22:00    62    19     16   239  (WSW)   1091    clear     none
     23:00    62    19     11   258  (WSW)   1051    clear     none
     00:00    62    19      8   261    (W)   1006    clear     none
     01:00    62    17     12   307   (NW)   1080    clear     none
     02:00    59    15      9   333  (NNW)   1109    clear     none
     03:00    61    17      3   253  (WSW)    977    clear     none
     04:00    60    15      1   254  (WSW)   1668    clear     none
     05:00    59    15      6   236   (SW)   1178    clear     none
     06:00    56    14      5   199  (SSW)   1345    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: 2.10.0
      Current TUI version: TUI 1.5.1