Subject: 3.5m Night Log 20210814
From: ajt@apo.nmsu.edu
Date: Sun, 15 Aug 2021 11:23:10 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, August 14, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH01  Z.Rustamkulov     Z.Rustamkulov
NM02  K.Sanderson       K.Sanderson
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH01  ARCTIC         --:--   --:--
NM02  DIS            --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH01/R      19:58  01:35  1.7  3.9   0    0   0.0  0.0   0    0
NM02/R      01:35  06:18  4.7   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend,R.McMillan
No instrument problems, but observations were thwarted all night by high humidity and clouds. While the clouds cleared up somewhat around 21:00, the humidity remained too high to open, and we had some light rain around 03:30.
                    ------- 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
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               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    55    51      9   135   (SE)          cloudy    humid
     17:00    55    50      5   135   (SE)          cloudy    humid
     18:00    54    50      1   165  (SSE)          cloudy    humid
     19:00    54    51      3   138   (SE)          cloudy    humid
     20:00    52    50     10    79    (E)          cloudy    humid
     21:00    52    50     10    86    (E)         ptly cldy  humid
     22:00    51    50      8    89    (E)        mstly cldy  humid
     23:00    52    50      9    88    (E)          cloudy    humid
     00:00    52    48     12   129   (SE)          cloudy    humid
     01:00    51    48     17   142   (SE)          cloudy    humid
     02:00    51    49     11   155  (SSE)          cloudy    humid
     03:00    51    49      8   177    (S)          cloudy   lt rain
     04:00    51    50      6   173    (S)          cloudy   lt rain
     05:00    51    50      7   171    (S)          cloudy    humid
     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 HUB version: v20171231_01
Current TUI version: 2.6.0