Subject: 3.5m Night Log 20200313
From: trudyk@apo.nmsu.edu
Date: Sat, 14 Mar 2020 13:09:29 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, March 13, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY01  M.Brotherton      J.McLane
UW05  K.Bell            K.Bell
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY01  TSPEC          --:--   --:--
UW05  Agile          02:00   07:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY01/R      19:19  20:59    1.7  0    0    0   0.0  0.0   0    0
UW05/R      20:59  07:06    3.0  2.0  0    0   0.0  5.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Apparently the quad did not hold on arctic, as we had a dropped quad come checkout. Also due to power outages, az power box lever was thrown to 'reset' and the mirror covers needed a reset. Evening started cloudy, rainy and foggy. Fog and high humidty perisisted until 02:00. We finaly opened at 02:00. Seeing was bad, but it stayed mostly clear, so we soldiered on. The TR2 rotator suffered a larger than normal number of failures (though we did spend a lot of time near the meridian, where the field rotation's rate is highest. Failures were all quickly handled with a rotator reset and reslew, never more than 30 seconds downtime.
                    ------- 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
--------------------------------------------------------------------------
 02:24 AGILE      950(-1235)  27  68  -0.7  1.5  5.0  1.0 -0.1   BG40  2.10
            ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    39    31     24   213  (SSW)          cloudy     rain
     17:00    41    31     26   208  (SSW)          cloudy   lt rain
     18:00    41    30     22   244  (WSW)          cloudy     fog
     19:00    39    31     20   258  (WSW)          cloudy     fog
     20:00    37    31     20   270    (W)          cloudy     fog
     21:00    34    32     13   270    (W)          cloudy     fog
     22:00    34    30     18   282  (WNW)          cloudy    humid
     23:00    33    29     17   271    (W)          cloudy    humid
     00:00    33    27     21   258  (WSW)          cloudy    humid
     01:00    32    26     22   263    (W)         ptly cldy  humid
     02:00    32    24     24   266    (W)        mstly clr    none
     03:00    30    26     15   303  (WNW)        mstly clr    none
     04:00    30    24     19   293  (WNW)    159 mstly clr    none
     05:00    30    22     15   301  (WNW)    153 mstly clr    none
     06:00    32    14     14   288  (WNW)    157 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.
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