Subject: 3.5m Night Log 20170725
From: mcmillan@apo.nmsu.edu
Date: Wed, 26 Jul 2017 11:34:14 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, July 25, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
S.Mahadevan    G.Stefansson,S.Mahadevan ARCTIC         20:05   05:15
                  J.Wisniewski,L.Hebb
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
DD01/R     20:15   06:05    0    0    0    0   8.0  1.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Unexpectedly, it was a lovely night with many clear hours and excellent seeing (at least at the time that we focused).  ARCTIC with diffuser got lots of valuable sub-milli-mag photometry on a target around 8.5.
                    ------- 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
--------------------------------------------------------------------------
 20:35 arctic   660( 1499) 165  67  16.9 19.5 19.2 19.1 18.8 Smrk 0.61
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    48      5   264    (W)    138  ptly cldy   none
     17:00    68    50      4   249  (WSW)    145  ptly cldy   none
     18:00    70    51      9   228   (SW)    152  ptly cldy   none
     19:00    67    51      8   200  (SSW)    180  ptly cldy   none
     20:00    63    49     10   203  (SSW)    243 mstly clr    none
     21:00    62    50     10   209  (SSW)    390 mstly clr    none
     22:00    61    50     11   200  (SSW)    478    clear     none
     23:00    61    50      9   189    (S)    559    clear     none
     00:00    61    50     10   186    (S)    545    clear     none
     01:00    59    50      9   211  (SSW)    527    clear     none
     02:00    59    50     13   205  (SSW)    483    clear     none
     03:00    59    49     12   210  (SSW)    502    clear     none
     04:00    59    51      9   188    (S)    359 mstly clr    none
     05:00    59    50      4   247  (WSW)    494 mstly clr    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: 2.6.0