Subject: 3.5m Night Log 20161022
From: mcmillan@apo.nmsu.edu
Date: Sun, 23 Oct 2016 12:58:56 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, October 22, 2016
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
A.Mukadam         A.Mukadam             Agile          18:30   06:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UW08/R     18:30   07:06    0    0   0.1   0   6.2  6.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
High clouds (thin to medium) during the first few hours of the night, then clear during second half.
The agile rotator had multiple problems during checkout, so I power cycled it and it checked out successfully after that.  Then during observations it failed tracking twice with a motion error, once at -72 deg and once at -90 (tracking negative).  After the second failure I suggested a change of sky rotation.  Each failure only took about a minute to recover, but re-establishing the field at a new rotation took longer.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
UW08    A         T/H     00:38  00:46    Agile rotator tracking trouble
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 18:59 AGILE      585(-1288)  88  66  12.0 13.3 12.7 13.2 12.9   BG40  1.50
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    57    28      6   274    (W)    930  ptly cldy   none
     17:00    54    29      7   319   (NW)    885  ptly cldy   none
     18:00    51    30      1   191    (S)    926  ptly cldy   none
     19:00    54    11      8     2    (N)    350  ptly cldy   none
     20:00    53     6      5   350    (N)    270  ptly cldy   none
     21:00    51    14      6   359    (N)    566 mstly clr    none
     22:00    54    10      6    58  (ENE)    471    clear     none
     23:00    50    28      2   194  (SSW)   1189    clear     none
     00:00    49    32      4   195  (SSW)   1158    clear     none
     01:00    50    27      1    52   (NE)   1132    clear     none
     02:00    47    27      4    33  (NNE)   1099    clear     none
     03:00    46    30      8    10    (N)   1064    clear     none
     04:00    50    28      9     4    (N)   1102    clear     none
     05:00    51    27     10     8    (N)   1175    clear     none
     06:00    51    28     13     3    (N)   1237    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: 1.2.2
    Current TUI version: 2.5.1