Subject: 3.5m Night Log 20130424
From: alaina@apo.nmsu.edu
Date: Thu, 25 Apr 2013 10:46:21 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, April 24, 2013
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
J.Prieto          J.Prieto              DIS            19:57   20:43
M.Klaene          A.Bradley, R.McMillan X              20:43   01:04
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
PU02/R     19:49   20:43    0    0    0    0   0.0  0.9   0    0
EN01/R     20:43   06:13   0.1  4.2   0    0   0.0  4.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Bradley
The night was plagued with motion errors in altitude, requiring multiple controller resets.  Russet eventually changed the slew speed to something slower, and that seemed to fix the problem.  More details in the engineering email.  It was very worrying.  :(
Attempted to check dis focus, but we were forced closed by threatening clouds.  They stuck with us the rest of the night, and we gave up around 04:30.
                    ------- 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
--------------------------------------------------------------------------
 19:09 dis-slit   400(  257) -18  52   7.6 10.5 10.9 10.7  7.8   --  1.38
 19:48 dis-slit   537(  300)   1  50   7.3  8.8  9.1  8.1  7.4   --  2.00
 19:53 na2-guider   425(  177)  -1  50   7.3  8.6  8.9  7.9  7.4   Clear  1.30
 23:57 dis-slit   507(  215) 304  66   7.8  8.0  8.5  8.1  7.7   --  1.28
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    51    17      9   236   (SW)   3272    clear     none
     17:00    52    12     10   265    (W)   2456    clear     none
     18:00    52    13      9   267    (W)   1439    clear     none
     19:00    50    14     12   228   (SW)   1980 mstly clr    none
     20:00    45    12      8   198  (SSW)   1805    clear     none
     21:00    45    16      7   191    (S)   2334    clear     none
     22:00    47    15      3   228   (SW)   2960    clear     dust
     23:00    50    14      8   273    (W)   3177    clear     dust
     00:00    48    14      7   227   (SW)   3068  ptly cldy   dust
     01:00    46    16      9   191    (S)   2745   cloudy     dust
     02:00    46    15     11   203  (SSW)   2677   cloudy     dust
     03:00    45    17      3   196  (SSW)   2631   cloudy     dust
     04:00    48    15      5   194  (SSW)   2602 mstly 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: 2.0.0