Subject: 3.5m Night Log 20230116
From: dembicky@apo.nmsu.edu
Date: Tue, 17 Jan 2023 14:02:19 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, January 16, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY03  M.Moe             M.Moe
BY01  B.Boizelle        B.Boizelle
NM02  P.Holguin         P.Holguin
AP01  S.Merkowitz       R.McMillan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY03  ECHELLE        --:--   --:--
BY01  TSPEC          --:--   --:--
NM02  KOSMOS         --:--   --:--
AP01  APOLLO         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY03/R      17:29  22:25   4.9   0    0    0   0.0  0.0   0    0
BY01/R      22:25  00:10   1.7   0    0    0   0.0  0.0   0    0
NM02/R      00:10  05:57   2.5  3.3   0    0   0.0  0.0   0    0
AP01/R      05:57  06:57    0   1.0   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
2-3" of snow on during the day, and on the roof, kept us closed tonight.
Dan cleared the snow in front of the building and down to the SDSS telescope, I cleared the snow to the dorms and pad and up the side building ramp.  A thin layer of ice on the concrete makes things rather slippery, but if we don't get anymore snow the sun should clear the ice.  Unfortunately that is not what is in the forecast.
No snow overnight but we did have ice fog.
I filled all instruments at 07:00 this morning.
                    ------- 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                 10   259    (W)          cloudy   lt snow
     17:00                 18   245  (WSW)          cloudy     fog
     18:00                 21   240  (WSW)          cloudy     fog
     19:00                 16   253  (WSW)          cloudy     fog
     20:00                 15   257  (WSW)          cloudy     fog
     21:00                 17   267    (W)          cloudy     fog
     22:00                 17   258  (WSW)          cloudy     fog
     23:00                 11   266    (W)          cloudy     fog
     00:00                 13   254  (WSW)          cloudy     fog
     01:00                 21   214   (SW)          cloudy     fog
     02:00                 16   245  (WSW)          cloudy     fog
     03:00                 19   241  (WSW)          cloudy     fog
     04:00                 20   240  (WSW)          cloudy     fog
     05:00                 17   246  (WSW)          cloudy     fog
     06:00                 15   266    (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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