From:
Subject: 3.5m Night Log 20110503
Date: Wed,  4 May 2011 12:01:37 +0000 (UTC)
                       Apache Point Observatory
                       3.5m Telescope Night Log
                       Tuesday, May 03, 2011
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
B.Keeney          B.Keeney,J.Stocke     DIS,SPIcam     20:00   01:10
S.Jacobson        S.Jacobson            SPIcam         01:15   06:00
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
--------------------------------------------------------------------
CU04/R     19:55   01:10    0    0   0.3   0   4.3  0.7   0    0
CU02/R     01:10   06:05    0    0    0    0   4.9  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Clear to mostly clear with moderate, variable seeing.
DIS blue started to warm during the previous day, apparently from a
vacuum problem.  The first half observers had a backup program ready to
go, but putting DIS on the pump before sunset appeared very successful so
we started with the original plan.  Unfortunately, once off the pump it
started to warm again so only a few science exposures with DIS were
possible.  When DIS blue got warm enough to necessitate turning off the
electronics, we lost a little time discovering that the DIS ICC wouldn't
let half the instrument run without the other half.  So we switched to
the backup program.
The second half observer didn't have an alternate instrument program
ready to go, so he gave the time to another CU program instead.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
CU04    D         I/H      22:30  22:50   DIS b warm, can't run half inst
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:17 dis-slit   233( -213) 146  77   4.4  7.3  5.8  5.8  5.5   -  1.48
 23:12 SPICAM   167( -142) -12  59   5.0  4.8  5.1  4.6  4.8   R  1.43
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    52    12      9   181    (S)    767    clear     none
     17:00    50    11     10   252  (WSW)    785    clear     none
     18:00    51    10      9   212  (SSW)    823    clear     none
     19:00    45     8      6   185    (S)    880    clear     none
     20:00    40     7     17   150  (SSE)    903    clear     none
     21:00    40     3     18   161  (SSE)    864    clear     none
     22:00    41     5     18   179    (S)   1143    clear     none
     23:00    41     7     20   180    (S)   1308    clear     none
     00:00    41     6     14   178    (S)   1111    clear     none
     01:00    40     6     15   170    (S)   1043    clear     none
     02:00    38     7     14   174    (S)    961    clear     none
     03:00    37     7      6   185    (S)   1007    clear     none
     04:00    37     6     11   187    (S)   1000    clear     none
     05:00    39     6      8   182    (S)   1108    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: 2.14.0
    Current TUI version: 1.8.7