Subject: 3.5m Night Log 20120917
From: dembicky@apo.nmsu.edu
Date: Tue, 18 Sep 2012 12:42:49 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, September 17, 2012
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
D.Thilker         D.Thilker             DIS            --:--   --:--
J.Darling         J.Darling             DIS            01:20   07:00
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
JH01/R     19:14   01:10   5.1  0.8   0    0    0    0    0    0
CU01/R     01:10   06:41   0.2   0    0    0   5.3  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
We just got on the sky when the clouds came in and shut us down.  No real
science other than getting focused.  I closed the mirror covers as a
precaution with the clouds.  Several minutes later we had a few sprinkles
that set the rain sensor off and I quickly closed the main enclosure
shutter doors. Nothing significant in terms of rain on the mirror covers
or telescope.
Clouds and wind kept us closed for the remainder of the first half.
Seeing was horrible to start the 2nd half due to wind direction and the
cold front that was moving thru.
Seeing settled a litte better (probably 1.5 arc sec) after the telescope
temps stabalized an hour or so later.  I manually tweaked the focus
during the night.
Productive second half.
                    ------- 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
--------------------------------------------------------------------------
 19:40 dis-slit   500(  673)   8  57  14.6 17.0 15.4 17.3 15.1   --  1.20
 01:38 dis-slit     0( -299) -83  78   5.9  7.8  8.6  7.6  6.0   --  4.30
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    63    21     15   255  (WSW)    162    clear     none
     17:00    65    22      8   306   (NW)    152    clear     none
     18:00    61    20     10   299  (WNW)    146 mstly clr    none
     19:00    59    22      2   257  (WSW)    187  ptly cldy   none
     20:00    58    22      5   264    (W)    191 mstly cldy lt rain
     21:00    59    23      1   213  (SSW)    196 mstly cldy   none
     22:00    57    25      3    89    (E)    212  ptly cldy   none
     23:00    48    32     19    76  (ENE)   1329  ptly cldy   none
     00:00    45    47     37    61  (ENE)   1200  ptly cldy   none
     01:00    43    32     26    72  (ENE)   1053 mstly clr    none
     02:00    42    31     21    68  (ENE)   1157 mstly clr    none
     03:00    42    32     20    61  (ENE)   1150    clear     none
     04:00    44    30     21    70  (ENE)    774    clear     none
     05:00    44    29     20    75  (ENE)    711    clear     none
     06:00    44    29     18    64  (ENE)    799    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: 2.15.0
    Current TUI version: 1.9.5