Subject: 3.5m Night Log 20200827
From: mcmillan@apo.nmsu.edu
Date: Fri, 28 Aug 2020 12:35:11 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, August 27, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW02  K.Bell            K.Bell
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW02  Agile          19:45   06:27
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW02/R      19:42  06:27    0    0    0    0   4.3  6.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had a few high clouds at the start of the night and again at the end, with photometric skies in between.   Poor seeing first half improved to sub-arcsecond during the second half.  We observed one target the whole time, and with advance planning and careful choice of rotator position, we never had any difficulties.  It was a very peaceful and productive night.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:12 AGILE      535( -687)  85  58  18.4 21.8 21.0 21.1 19.6   BG40  1.55
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    76    42      7   238  (WSW)    615 mstly cldy   none
     17:00    70    38      2   228   (SW)    666  ptly cldy   none
     18:00    75    40     10   258  (WSW)    646  ptly cldy   none
     19:00    69    38      7   266    (W)    670 mstly clr    none
     20:00    65    36      5   198  (SSW)    788 mstly clr    none
     21:00    65    32     10   180    (S)    694    clear     none
     22:00    65    32     15   181    (S)    587    clear     none
     23:00    64    31     13   162  (SSE)    796    clear     none
     00:00    62    28     15   156  (SSE)    740    clear     none
     01:00    62    28     15   160  (SSE)    858    clear     none
     02:00    62    27      9   182    (S)    773    clear     none
     03:00    64    30     10   192  (SSW)    679    clear     none
     04:00    64    28     10   196  (SSW)    706  ptly cldy   none
     05:00    63    28      8   208  (SSW)    706  ptly 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.
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Current TUI version: 2.6.0