Subject: 3.5m Night Log 20200622
From: trudyk@apo.nmsu.edu
Date: Tue, 23 Jun 2020 13:42:09 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, June 22, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS01  D.Michael         G.Polack,B.Meena
NM07  D.Bizyaev         D.Bizyaev
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS01  ARCTIC         20:20   00:00
NM07  ARCTIC         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS01/R      20:24  01:10    1.0  0    0    0   2.3  1.5   0    0
NM07/R      01:10  05:47    4.6  0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started partly cloud with smoke from fires out west making things a little hazy. Night was clear and calm with good seeing. Around 22:30 a storm system started to form about 100 mile to the north. It started to grow rapidly, by midnight radar showed rain on our doorstep, and we closed. A suckerhole teased us until 01:00 while rain sprung up all around us. It looked to be going away and we were hoping to open around 03:00, but then the wind and a big wave of dust hit us. NM07 gave up around 04:30, dust was still too high. We did not open again after midnight.
                    ------- 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
--------------------------------------------------------------------------
 20:59 arctic   381( 1437) 146  49  21.2 23.4 23.2 22.6 20.9   SDSS_r  1.03
 22:16 arctic   650( 1588) 295  40  20.1 20.7 21.3 20.3 20.2   SDSS_r  2.16
           ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    74    32     13   264    (W)   1063  ptly cldy   none
     17:00    76    32     10   279    (W)    907  ptly cldy   none
     18:00    77    32     10   300  (WNW)    871  ptly cldy   none
     19:00    74    31     12   267    (W)    774 mstly clr    none
     20:00    71    29      9   264    (W)    853    clear     none
     21:00    70    28      8   245  (WSW)    896    clear     none
     22:00    69    27     15   258  (WSW)   1121    clear     none
     23:00    68    25      9   265    (W)   1012    clear     none
     00:00    68    26     10   279    (W)   1117 mstly clr    none
     01:00    67    25      8   271    (W)   1036 mstly clr    none
     02:00    66    24      1    43   (NE)   1227  ptly cldy   none
     03:00    58    36     25    64  (ENE)  10159  ptly cldy   dust
     04:00    57    24     18    70  (ENE)   8817  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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