Date: Wed, 22 Jun 2011 05:13:48 -0600 (MDT)
Subject: 3.5m Night Log 20110621
From: "Jack Dembicky"
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, June 21, 2011
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
S.Bickerton       S.Bickerton           DIS            20:15   01:07
A.Brown           A.Brown               Echelle        01:15   05:03
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
PU05/R     20:23   01:10    0    0    0    0   3.7  1.1   0    0
CU06/R     01:10   05:47    0    0    0   0.3  0.0  4.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Dis red failed readout during checkout tonight.  I had to reset the DIS robotics, I got a "motor
position error for grating 4" error and was not able to clear it with issuing various dis home
commands alone.  I had the problem resolved before sunset, but the gratings were a little
uncooperative during calibration and it took a few integrations to get things correct again.  most
likely due to the robotics power being cycled and homing things several times in the process.  The
observer used twilight to get their wavecals.
00:45:02 APO.Jack-Obs1 27 dis f distxt="reported motor position for grating 4 is odd"
The enclosure widget was showing ? for eyelids and tert rot.  Did the power get cycled or did we
have a power glitch today?  Eyelids and mirror covers worked fine without any need for being reset
at the switch, just enclosure status was showing ?.  Moving them to the correct position fixed the
problems.
The Echelle slitview camera quit around 03:10. Slitty computer hard crashed (unresponsive) and
needed power cycling on intermediate level.  We lost about 18 mins of on sky time due to this
problem.
                    ------- 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
--------------------------------------------------------------------------
 21:13 dis-slit   184(  514) 105  59  16.9 20.1 18.5 18.7 18.4   --  1.20
 01:19 ECHELLE   313( -644) 146  68  14.7 15.5 15.5 14.9 14.8   ND3  1.40
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     18:00    69    27      8   354    (N)    411    clear     none
     19:00    67    24     18   326   (NW)    346    clear     none
     20:00    65    23      1   223   (SW)    234    clear     none
     21:00    63    21      3    77  (ENE)    257    clear     none
     22:00    63    21      9    14  (NNE)    291    clear     none
     23:00    60    31     14    81    (E)   1239    clear     none
     00:00    62    22      9    37   (NE)    479    clear     none
     01:00    62    26     16    49   (NE)   1097    clear     none
     02:00    57    35     13    82    (E)   1833    clear     none
     03:00    57    35     14    67  (ENE)   2357    clear     none
     04:00    55    37     14    79    (E)   2149    clear     none
     05:00    61    23      2   259    (W)   1272    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