Subject: 3.5m Night Log 20231118
From: decolib@apo.nmsu.edu
Date: Sun, 19 Nov 2023 11:50:08 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, November 18, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW05  P.Szkody          P.Szkody
OU02  A.Moss            G.Jewett
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW05  KOSMOS         19:00   20:06
OU02  KOSMOS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW05/R      17:09  00:10   2.0  3.9   0    0   0.0  1.1   0    0
OU02/R      00:10  06:28   6.3   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.DeColibus
Due to clouds, we did not open until 19:00...and then the clouds came right back. Precipitation on radar nearby made us close shortly after 20:00, and we didn't reopen; the trio of clouds, humidity, and rain on radar kept us closed.
While the rain nearby did eventually go away, the humidity remained too high to open for the rest of the night, and we gave up a little before 05:00.
                    ------- 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
--------------------------------------------------------------------------
 19:08 khigh   278( 1015) -79  76   8.3  8.4  8.7  8.6  8.2   --  1.25
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    48    42     21   245  (WSW)    747 mstly cldy   none
     17:00    48    41     18   242  (WSW)    628 mstly cldy   none
     18:00    47    40     17   246  (WSW)    391 mstly cldy   none
     19:00    47    40     15   261    (W)    398   cloudy     none
     20:00    47    41     13   267    (W)    302   cloudy     none
     21:00    46    40     18   234   (SW)    241   cloudy     none
     22:00    46    40     17   251  (WSW)    250   cloudy     none
     23:00    45    40     19   245  (WSW)        mstly cldy  humid
     00:00    44    39     18   268    (W)        mstly cldy  humid
     01:00    43    39     18   248  (WSW)        mstly cldy  humid
     02:00    42    37     22   262    (W)        mstly cldy  humid
     03:00    40    37     21   269    (W)          cloudy    humid
     04:00    38    38     11   295  (WNW)          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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