Subject: 3.5m Night Log 20170824
From: cgray@apo.nmsu.edu
Date: Fri, 25 Aug 2017 12:35:31 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, August 24, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
N.Chanover        M.Kasliwal, O.Fox     Tspec          19:41   20:17
B.Holler          B.Holler, M.Yanez     Tspec          --:--   --:--
E.Baron           J.Derkacy             DIS            00:47   05:01
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
DD04/R     19:46   21:16    0   1.0   0    0   0.0  0.5   0    0
CU03/R     21:16   01:10   3.4  0.5   0    0    0    0    0    0
OU04/R     01:10   06:25   1.4   0    0    0   3.9  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
I have to admit, I did not expect us to open tonight.  However, it seemed to be the directors discretion for the clouds to not rain on us and we opened immediately at sunset.  I think there were a couple exposures that didn't get completely clouded out....maybe.  There was no such luck with the second program.  Skies were somewhat clear but the humidity was just too high to open. They threw in the towel around midnight when there wasn't enough time to observe.  And then a miracle occurred!  The humidity started dropping to levels safe enough to open and open we did!  Clouds became pretty bad towards the end of the night and we gave up at 5am.
The left dome door is producing an odd clunking sound when opening and closing and I sent a PR.
                    ------- 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
--------------------------------------------------------------------------
 23:54 dcamera    268(  580) 202  59  11.5 12.0 12.3 12.1 11.4   --  0.99
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    66    52     11   217   (SW)    202  ptly cldy   none
     17:00    61    49     11   241  (WSW)    187 mstly cldy  humid
     18:00    57    49      8   268    (W)    176 mstly cldy  humid
     19:00    56    50      4   264    (W)    247 mstly cldy  humid
     20:00    54    51      2   225   (SW)        mstly cldy  humid
     21:00    52    50     12    80    (E)        mstly cldy  humid
     22:00    51    50     11    79    (E)         ptly cldy  humid
     23:00    50    49     12    79    (E)         ptly cldy  humid
     00:00    51    48      4   109  (ESE)        mstly clr   humid
     01:00    53    48      3   238  (WSW)        mstly clr   humid
     02:00    52    48      5   199  (SSW)         ptly cldy  humid
     03:00    52    48      3   226   (SW)          cloudy    humid
     04:00    52    49      3   205  (SSW)          cloudy    humid
     05:00    52    48      3   200  (SSW)          cloudy    humid
     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