Subject: 3.5m Night Log 20191203
From: trudyk@apo.nmsu.edu
Date: Wed,  4 Dec 2019 12:10:47 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, December 03, 2019
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU01  J.Roberts         J.Roberts
CU02  J.Keller          J.Keller
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU01  ARCTIC         17:06   23:42
CU02  ARCTIC         03:45   04:45
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU01/R      17:06  01:36    1.8  0    0    0   0.0  6.6   0    0
CU02/R      01:36  06:41    4.1  0    0    0   1.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started out party cloudy with average seeing. Clouds came in waves, but growing thicker each time as the night wore on. Rain headed our way suddenly cropped up on the radar at 23:30. We closed at 23:42 as it got closer. Skies were overcast by midnight. Some clearing occurred around 03:00 but the radar returns persisted near us. Rain vanished off radar by 03:45 so we opened. Thick clouds caught up with us again by 04:45 so we closed and remained clsoed.
                    ------- 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
--------------------------------------------------------------------------
 17:26 arctic   653( 1040)  40  57   8.8  9.2  9.1  9.1  8.7   SDSS_r  1.25
 03:56 arctic   395(  690) 123  65   6.5  7.3  7.7  7.4  6.6   CU_VR  0.87
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    48     2      6    11    (N)     13  ptly cldy   none
     17:00    48     2     12   334  (NNW)     19  ptly cldy   none
     18:00    47     3     11    36   (NE)     18  ptly cldy   none
     19:00    47     3      9   298  (WNW)     24  ptly cldy   none
     20:00    47     5      7   358    (N)     34  ptly cldy   none
     21:00    47     6     11   330  (NNW)     35  ptly cldy   none
     22:00    47     7     12   324   (NW)     33  ptly cldy   none
     23:00    48     8     11   311   (NW)     38 mstly cldy   none
     00:00    48    10      8   261    (W)     52   cloudy     none
     01:00    47     9     12   298  (WNW)     46   cloudy     none
     02:00    49     9     18   299  (WNW)     83   cloudy     none
     03:00    45    24     13   333  (NNW)     37 mstly cldy   none
     04:00    44    21     11   299  (WNW)     41  ptly cldy   none
     05:00    43    17      6   280    (W)     50   cloudy     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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