Subject: 3.5m Night Log 20221205
From: ajt@apo.nmsu.edu
Date: Tue,  6 Dec 2022 12:18:28 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, December 05, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY06  E.Hintz           S.Call,T.Morrell
BY01  B.Boizelle        B.Boizelle,J.Davidson
BY02  C.Scoresby        C.Scoresby
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY06  TSPEC          --:--   --:--
BY01  TSPEC          --:--   --:--
BY02  TSPEC          --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY06/R      17:06  00:10    0  7.1    0    0   0.0  0.0   0    0
BY01/R      00:10  01:55    0  1.8    0    0   0.0  0.0   0    0
BY02/R      01:55  06:43  1.2  3.6    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Super foggy (and correspondingly humid) all night long. I caught one glimpse of part of the sky on the all-sky camera all night; we didn't open. Gave up at 04:45.
During test slews, the altitude drive had a low hum at 10 alt after being stationary at that position for about 30 seconds, both at 150 az and 104 az, but didn't slip or behave oddly otherwise, and the hum didn’t occur at higher altitudes.
                    ------- 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    42    34     14   269    (W)        mstly cldy   fog
     17:00    41    34     16   233   (SW)          cloudy     fog
     18:00    41    34      6   257  (WSW)         ptly cldy   fog
     19:00    40    34     16   259    (W)          cloudy     fog
     20:00    41    34     10   266    (W)          cloudy     fog
     21:00    41    33     19   267    (W)          cloudy     fog
     22:00    41    34     25   262    (W)          cloudy     fog
     23:00    41    34     16   267    (W)          cloudy     fog
     00:00    40    34     22   273    (W)          cloudy     fog
     01:00    40    30     22   258  (WSW)          cloudy     fog
     02:00    39    31     22   260    (W)          cloudy     fog
     03:00    38    32     26   268    (W)          cloudy     fog
     04:00    37    31     19   272    (W)          cloudy     fog
     05:00    36    34     23   279    (W)          cloudy     fog
     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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