Subject: 3.5m Night Log 20231109
From: decolib@apo.nmsu.edu
Date: Fri, 10 Nov 2023 11:43:25 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, November 09, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM07  D.Bizyaev         D.Bizyaev
NM08  A.Dijeau          A.Dijeau
AP01  S.Merkowitz       R.McMillan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM07  KOSMOS         --:--   --:--
NM08  KOSMOS         --:--   --:--
AP01  APOLLO         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM07/R      17:15  00:10   6.9   0    0    0   0.0  0.0   0    0
NM08/R      00:10  05:20   3.6  1.6   0    0   0.0  0.0   0    0
AP01/R      05:20  06:20    0   1.0   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.DeColibus
While we had clear skies during much of A-half, the humidity was too high to open. It started lightly snowing after midnight, but there was no snow accumulation on site. The weather looked hopeless with no chance of opening before sunrise, so I went to bed at 04:45.
As requested by Bill, since I went to bed early, I filled all four instruments at 03:30 so the morning crew didn't have to do it.
                    ------- 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    43    34      8   195  (SSW)   1276 mstly clr    none
     17:00    39    33      2   207  (SSW)   1256 mstly clr   humid
     18:00    32    31      6    97    (E)           clear    humid
     19:00    33    32      8   104  (ESE)           clear    humid
     20:00    35    32      8    88    (E)           clear    humid
     21:00    32    31     10    88    (E)           clear    humid
     22:00    29    28     14    82    (E)         ptly cldy  humid
     23:00    29    29     15    78  (ENE)        mstly cldy  humid
     00:00    30    30      9    93    (E)        mstly cldy lt snow
     01:00    31    30     12   114  (ESE)          cloudy   lt snow
     02:00    32    31     14   103  (ESE)          cloudy   lt snow
     03:00    33    31     14   134   (SE)          cloudy   lt snow
     04:00    32    31     17   121  (ESE)         ptly cldy  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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