Date: Sat, 20 Nov 2010 06:16:24 -0700 (MST)
Subject: 3.5m Night Log 20101119
From: "Jack Dembicky"
                       Apache Point Observatory
                       3.5m Telescope Night Log
                       Friday, November 19, 2010
                                                        ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Gladders        M.Gladders, M.Bayliss TSPEC          17:00   20:40
                  E.Wuyts                              21:30   21:50
S.Hawley          J.Dembicky            Echelle,TSPEC  23:00   01:00
T.Ellsworth-BowersT.Ellsworth           TSPEC          01:00   06:35
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
--------------------------------------------------------------------
UC01/R     17:09   00:00    0   3.1   0    0   0.0  3.8   0    0
UW17/R     00:00   01:00    0    0    0    0   0.0  2.0   0    0
CU08/R     01:00   06:29    0    0    0    0   0.0  5.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist:    J.Dembicky
We had some poor tracking with the telescope around 20:40.  It appeared to be an accumulation of
drive error and slewing the telescope cleared the problem.  Tracking was much improved afterwards.
Clouds were too thick after about 21:50 for much useful IR observations.  My 1st half observers
gave up at 23:00 and I switched to the next program which could work under these conditions.
Skies improved after midnight.
                    ------- 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
--------------------------------------------------------------------------
 17:52 TSPEC   284(  882) 112  68   4.4  7.1  5.6  6.1  5.7   Ks  1.10
 23:17 ECHELLE    92( -655) 125  66   5.2  5.1  5.2  4.9  5.0   ND3  0.78
 00:08 TSPEC    80(  562) 141  75   5.0  4.8  5.0  4.2  4.6   Ks  0.90
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    48    12     12   248  (WSW)    486    clear     none
     17:00    41    15      8   244  (WSW)    830 mstly clr    none
     18:00    41    17     12   236   (SW)   1252 mstly clr    none
     19:00    41    15     12   217   (SW)   1332  ptly cldy   none
     20:00    41    14     12   245  (WSW)    939  ptly cldy   none
     21:00    42    14     12   254  (WSW)    699  ptly cldy   none
     22:00    43    14     16   250  (WSW)    739 mstly cldy   none
     23:00    42    15     16   247  (WSW)    810   cloudy     none
     00:00    41    16     15   262    (W)   1050  ptly cldy   none
     01:00    41    17     16   256  (WSW)    997  ptly cldy   none
     02:00    40    17     18   242  (WSW)   1022 mstly clr    none
     03:00    41    16     18   270    (W)    885 mstly clr    none
     04:00    40    16     16   266    (W)    742 mstly clr    none
     05:00    39    15     18   253  (WSW)    639 mstly clr    none
     06:00    39    15     18   250  (WSW)    554 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: 2.13.0
    Current TUI version: 1.8.4