Subject: 3.5m Night Log 20240206
From: ajt@apo.nmsu.edu
Date: Wed,  7 Feb 2024 12:45:36 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, February 06, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU03  A.Kowalski        S.Kanodia
OU02  A.Moss            A.Moss
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU03  ARCTIC         --:--   --:--
OU02  KOSMOS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU03/R      17:49  00:10   6.4   0    0    0   0.0  0.0   0    0
OU02/R      00:10  06:45   5.1  1.5   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
With another winter storm coming in tonight we were completely overcast with lots of radar, and winds above the limit on and off all night. Wind gusts got up to about 55mph by the end of the night. We were unable to open.
Heightened humidity after 02:00 and we started to get some precipitation around 03:10 that didn't last too long, but it started snowing more again by 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    42    15     27   160  (SSE)    331   cloudy     none
     17:00    45    15     23   180    (S)    415   cloudy     none
     18:00    45    11     21   188    (S)    381   cloudy     none
     19:00    46     8     28   181    (S)    348   cloudy     none
     20:00    45     8     23   183    (S)    296   cloudy     none
     21:00    42    12     30   178    (S)    444   cloudy     none
     22:00    40    15     22   182    (S)    508   cloudy     none
     23:00    38    17     25   198  (SSW)    532   cloudy     none
     00:00    38    17      4   246  (WSW)    836   cloudy     none
     01:00    33    19     14   287  (WNW)    624   cloudy     none
     02:00    35    31     21   213  (SSW)    504   cloudy    humid
     03:00    33    31     18   253  (WSW)          cloudy   lt snow
     04:00    34    29     31   231   (SW)          cloudy    humid
     05:00    32    30     22   248  (WSW)          cloudy     snow
     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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