Date: Sun, 5 Feb 2012 13:31:24 -0000 (UTC)
Subject: 3.5m Night Log 20120204
From: mcmillan@apo.nmsu.edu
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, February 04, 2012
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
J.Bally           A.Youngblood,J.Bally  ECHELLE        18:30   20:00
T.Murphy          R.McMillan            APOLLO         --:--   --:--
A.Ritchey         A.Ritchey             Echelle        --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
CU06/R     17:47   23:10    0   4.0   0    0   0.0  1.4   0    0
DD01/R     23:10   00:10    0   1.0   0    0   0.0  0.0   0    0
UW13/R     00:10   06:47   1.6  5.0   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
High but relatively thick clouds caused difficulties first half; although
the dome remained open until about 22:00, it was only possible to take
data for part of the time (and seeing was extremely bad).  When the clouds
eased up, the humidity pegged and remained high until morning twilight.
During second half we had a bit of freezing fog that triggered the
precipitation sensor.
                    ------- 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
--------------------------------------------------------------------------
 18:49 dis-slit   450( -400)  37  62  -6.8 -3.1 -2.8 -3.3 -6.0   -  5.00
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    26    13     18    77  (ENE)    481  ptly cldy   none
     17:00    24    13     22    72  (ENE)    478 mstly cldy   none
     18:00    21    13     19    78  (ENE)    500  ptly cldy   none
     19:00    20    12     19    82    (E)    485  ptly cldy   none
     20:00    19    13     24    83    (E)    514 mstly cldy   none
     21:00    19    15     20    76  (ENE)   1149 mstly cldy   none
     22:00    19    15     27    68  (ENE)   1782 mstly cldy  humid
     23:00    18    15     18    78  (ENE)   1549 mstly cldy  humid
     00:00    17    16     18    80    (E)   1673 mstly clr   humid
     01:00    17    15     11    83    (E)   1547 mstly clr   humid
     02:00    17    16     13    91    (E)   1094  ptly cldy  humid
     03:00    17    15     13    88    (E)    924  ptly cldy  humid
     04:00    17    15     17   132   (SE)   1240  ptly cldy  humid
     05:00    18    16     12   126   (SE)   1573  ptly cldy  humid
     06:00    20    17      9   149  (SSE)   2185  ptly cldy   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: 1.9.4