Subject: 3.5m Night Log 20170331
From: trudyk@apo.nmsu.edu
Date: Sat,  1 Apr 2017 11:36:50 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, March 31, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
C.Gray            C.Gray                DIS            --:--   --:--
T.Murphy          R.McMillan            APOLLO         --:--   --:--
J.Tobin         J.Tobin,Reynolds,Sooner DIS            01:30   03:00
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
NM04/R     19:31   20:31    0    1.0  0    0   0.0  0.0   0    0
AP01/R     20:31   21:31    0    1.0  0    0   0.0  0.0   0    0
OU01/R     21:31   06:42    5.5  2.1  0    0   1.5  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan,T.Rudyk
Ecam had to be restarted during checkout.  High dust kept us closed until 1:30 at which point a system forming to the west threatened to shut the night down in a few hours.  We opened at 01:30 to give the OU class a chance (even if for a short while) to observe, with the fans in defensive posture.  Closed at 03:00 due to not wanting to exposure the mirror to any more dust.  Had a few snowflakes starting around 04:30, which ironically scrubbed some of the dust from the air, but now we had snow.  The observers called it at 05:35.
                    ------- 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
--------------------------------------------------------------------------
 00:45 dcamera    600(   94) 240  57   0.8  1.8  4.6  1.7  1.4   -  1.91
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    44    16     19   249  (WSW)  12534 mstly cldy   dust
     17:00    43    15     25   256  (WSW)  10968 mstly cldy   dust
     18:00    43    15     26   264    (W)  22312 mstly cldy   dust
     19:00    38    20      5   276    (W)  12763 mstly cldy   dust
     20:00    35    20     15   327  (NNW)  14556 mstly clr    dust
     21:00    35    16     11   329  (NNW)   9362 mstly clr    dust
     22:00    35    15     10   325   (NW)   9128 mstly clr    dust
     23:00    35    15     11   274    (W)   9897 mstly clr    dust
     00:00    35    15      9   257  (WSW)   9785 mstly clr    dust
     01:00    34    14      8   259    (W)   8889 mstly clr    dust
     02:00    33    13     12   250  (WSW)   8665  ptly cldy   dust
     03:00    33    13      6   260    (W)   8302  ptly cldy   dust
     04:00    32    14      7   222   (SW)   6669 mstly cldy lt snow
     05:00    32    16     14   189    (S)   5156 mstly cldy   dust
     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: 2.6.0