Date: Sun, 13 Oct 2013 13:07:35 -0000 (UTC)
Subject: 3.5m Night Log 20131012
From: mcmillan@apo.nmsu.edu
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, October 12, 2013
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
G.Stringfellow    G.Stringfellow        TSPEC          18:45   20:20
                                        ECHELLE        20:22   20:42
T.Murphy          R.McMillan            APOLLO         20:45   21:40
T.Pewett     T.Pewett,D.Gries,Z.Guo     ECHELLE        21:45   01:55
                                        ECHELLE        02:30   03:10
A.Ritchey         A.Ritchey             ECHELLE        03:10   05:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
CU10/R     18:42   20:42    0    0    0    0   0.0  2.0   0    0
UW11/O     20:42   21:42    0    0    0    0   0.0  1.0   0    0
GS01/O     21:42   03:10   0.6   0    0    0   0.9  4.0   0    0
UW09/R     03:10   06:58   1.5   0    0    0   2.3  0.0  0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Clear first half, with medium to thick clouds second half and rising
humidity.  There was a period when the GS observers were unable to get
useful data, counted as lost to weather.  The 3.5m dewpoint sensor froze
up, but by comparing the 2.5m dewpoint sensor to the 3.5m telescope
temperatures I decided to close a while before the start of morning
twilight.
APOLLO ran a little over time so I reflected that in the time accounting,
but the extra time was very useful as we finally overcame two problems to
obtain some good signal.  Since this is not a regular facility instrument
and the telescope was working properly, the time was not listed as lost to
equipment problems.  Aside from APOLLO, the instruments and telescope
behaved well.
                    ------- 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
--------------------------------------------------------------------------
 19:47 APOLLO   700( 1531) 202  76  10.2  9.4  9.8  9.4  9.8   530  1.10
 20:52 ecamera    660( -167) 339  22  10.5 10.0 10.3 10.1 10.2   ND2  1.10
 02:18 ecamera    691( -260)  47  76   9.4  8.9  9.2  9.0  9.0   ND3  1.47
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    55    31     16   183    (S)    544    clear     none
     17:00    54    29      8   218   (SW)    484    clear     none
     18:00    53    30     12   192  (SSW)    519    clear     none
     19:00    48    30     18   135   (SE)    577    clear     none
     20:00    49    30     14   180    (S)    532    clear     none
     21:00    51    29     16   181    (S)    610    clear     none
     22:00    50    28     17   177    (S)    584    clear     none
     23:00    50    28     16   164  (SSE)    566 mstly clr    none
     00:00    49    29     14   170    (S)    510  ptly cldy   none
     01:00    50    29     11   159  (SSE)    465  ptly cldy   none
     02:00    49    32     20   131   (SE)    670 mstly cldy   none
     03:00    49    32     20   139   (SE)    672  ptly cldy  humid
     04:00    48    31     18   150  (SSE)    608  ptly cldy  humid
     05:00    48    31     18   155  (SSE)    680  ptly cldy  humid
     06:00    48    31     18   152  (SSE)    611  ptly cldy  humid
     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: 2.1.0