Subject: 3.5m Night Log 20230721
From: mcmillan@apo.nmsu.edu
Date: Sat, 22 Jul 2023 11:24:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, July 21, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NA01  A.Jaskot          A.Jaskot
OU02  A.Moss            A.Moss
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NA01  KOSMOS         --:--   --:--
OU02  KOSMOS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NA01/R      20:18  01:10   2.4  2.5   0    0   0.0  0.0   0    0
OU02/R      01:10  06:02   4.9   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Once again the smoke particles increased before sunset.  But we also had a series of perpetually-approaching-never-arriving rain storms, some high winds, and then towards morning some high humidity as well.  At last the rain sensor went off at 5 am.  Hopefully the increased moisture will keep the fire behavior subdued!
                    ------- 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    72    44     13    58  (ENE)   4792  ptly cldy   none
     17:00    73    43     12    95    (E)   4640  ptly cldy   none
     18:00    70    41     16    80    (E)   4273  ptly cldy   none
     19:00    69    41     14    90    (E)   4362 mstly clr    none
     20:00    67    43     13    92    (E)   5009 mstly clr   smoke
     21:00    66    40     19    87    (E)   5060 mstly clr   smoke
     22:00    65    40     20    91    (E)   6338  ptly cldy  smoke
     23:00    64    41     16    88    (E)   7166  ptly cldy  smoke
     00:00    62    40     14    91    (E)   7740  ptly cldy  smoke
     01:00    58    48     26    73  (ENE)   9670  ptly cldy  smoke
     02:00    57    52     24    72  (ENE)   8710  ptly cldy  smoke
     03:00    56    53     20    80    (E)   8398  ptly cldy  humid
     04:00    56    52     20    66  (ENE)   7673  ptly cldy  humid
     05:00    55    53     19    51   (NE)         ptly cldy lt rain
     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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