From:
Subject: 3.5m Night Log 20090901
Date: Wed,  2 Sep 2009 12:45:19 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Tuesday, September 1, 2009
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT     START  FINISH
 ---------------------------------------------------------------------
 M.Klaene        R.McMillan           NA2gdr,SH,SPIcam  22:30  06:15
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 EN02/W     20:22  05:44    0    0    0    0   0.9  8.5   0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 After more work tuning the new drives, Fritz handed the telescope
 over to me around 22:30.  I obtained a pointing model, re-checked
 collimation (and also updated the Shack-Hartmann instrument block),
 and did some tracking tests with both Shack-Hartmann and SPIcam.
 Pointing accuracy is pretty comparable to what it was before the
 drive replacement; tracking still needs some work but it's getting
 close.  Collimation is excellent after Bill's adjustments last week.
 I encountered some minor problems including a short power outage
 which upset a few pieces of equipment and a couple of servo errors
 that temporarily stopped azimuth tracking (cause is being hunted by
 daystaff).
                       ------- 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
--------------------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    69    45      8   230   (SW)   1063 mstly cldy   none
     17:00    64    42      9   194  (SSW)   1046 mstly cldy   none
     18:00    66    44      5   209  (SSW)   1062  ptly cldy   none
     19:00    62    42      9   187    (S)   1048  ptly cldy   none
     20:00    59    41     13   149  (SSE)   1052  ptly cldy   none
     21:00    58    39     15   154  (SSE)   1025  ptly cldy   none
     22:00    58    39     17   146   (SE)    993 mstly clr    none
     23:00    57    36      3   143   (SE)   1020 mstly clr    none
     00:00    56    35     14   123  (ESE)   1012  ptly cldy   none
     01:00    55    37     16   133   (SE)    998  ptly cldy   none
     02:00    55    38     13   141   (SE)    985  ptly cldy   none
     03:00    54    38     11   182    (S)    950 mstly clr    none
     04:00    54    39      6   186    (S)    834 mstly clr    none
     05:00    54    39      4   219   (SW)    828 mstly clr    none
     06:00    54    38      2   306   (NW)    863 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: 2.10.0
      Current TUI version: TUI 1.6