Date: Tue, 24 Sep 2013 12:20:55 -0000 (UTC)
Subject: 3.5m Night Log 20130923
From: "Alysha Shugart"
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, September 23, 2013
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Skrutskie       J.Borish              TRIPLESPEC     19:07   01:10
D.York            D.York                ECHELLE        01:10   06:20
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UV07/R     19:07   01:10    0    0    0    0   2.6  3.4   0    0
UC02/R     01:10   06:45    0    0    0    0   0.0  5.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Shugart
During UC02, at around 05:30-05:35, the star was knocked out of the slit
for no apparent reason. It was well out of the slit, and positioned toward
the bottom right of the slitviewer. In the next exposure, it was on the
opposite side. Wind was less than 15 mph, and we could not decide a
physical reason this happened. We re-centered on the star and guiding
resumed without issue the rest of the night. See guiding images
ecam/UT130924/proc-e1356-8
The night was clear and productive. No other issues. Seeing hovered
between 0.9 and 1.5".
                    ------- 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
--------------------------------------------------------------------------
 19:37 TSPEC   590( 1053)  97  50  10.3 11.7 11.8 11.6 10.3   --  1.20
 01:21 ECHELLE   615( -259) 240  35  10.1  9.5 10.1  9.6  9.6   ND3  0.97
 04:00 ECHELLE   616( -262) 219  26   9.9  9.1  9.6  9.2  9.4   ND1  1.25
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    54    23     13   336  (NNW)           clear     none
     17:00    54    24     12   328  (NNW)           clear     none
     18:00    53    25     15   347  (NNW)           clear     none
     19:00    51    26      4    11    (N)           clear     none
     20:00    50    26     18    29  (NNE)           clear     none
     21:00    51    24     10     1    (N)           clear     none
     22:00    52    25     14    11    (N)           clear     none
     23:00    52    25     26   357    (N)           clear     none
     00:00    51    25     22    13  (NNE)           clear     none
     01:00    50    25      9    30  (NNE)           clear     none
     02:00    50    25     12     5    (N)           clear     none
     03:00    50    25     15    49   (NE)           clear     none
     04:00    50    25     18    16  (NNE)           clear     none
     05:00    50    26     15    22  (NNE)           clear     none
     06:00    50    20      1   168  (SSE)           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: 2.1.0