Subject: 3.5m Night Log 20201026
From: trudyk@apo.nmsu.edu
Date: Tue, 27 Oct 2020 11:04:13 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, October 26, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU01  J.Wisniewski      S.Kanodia,A.Lim
NM04  E.Nielsen         E.Nielsen
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU01  ARCTIC         --:--   --:--
NM04  ECHELLE        --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU01/R      18:26  01:10    0.0  6.7  0    0   0.0  0.0   0    0
NM04/R      01:10  07:09    3.4  2.6  0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Dataq was hung from the backend when I arrived. Evening started mostly cloudy, with clouds getting thicker. Winds were high. By sunset, we were clouded out. There was rain all around us on radar, so we did not open. Light snow onsite at 20:30 despite partly cloudy skies. Add to this a dust spike around 22:00! We weren't getting any breaks, it seems. Light snow started again around 22:50. Accumulation began around 23:30. Snow program started at 12:45 (I almost forgot to start it: kind of like the first snow when everyone on the road forgets how to drive in it). At/around 01:00 dataq froze from the backend again. We gave up at 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    46    28     19   218   (SW)   1040 mstly cldy   none
     17:00    44    28     19   217   (SW)   1740 mstly cldy   none
     18:00    41    27     12   221   (SW)   2577   cloudy     none
     19:00    36    25      6   336  (NNW)   2089   cloudy     none
     20:00    33    25     11   226   (SW)   2502  ptly cldy lt snow
     21:00    34    27     13   170    (S)   2837 mstly cldy   none
     22:00    37    29     12   179    (S)   6897   cloudy   lt snow
     23:00    35    29      7   159  (SSE)   6172   cloudy     snow
     00:00    32    32     15   184    (S)          cloudy     snow
     01:00    32    32     20   186    (S)          cloudy     snow
     02:00    32    32     21   211  (SSW)          cloudy   lt snow
     03:00    32    33     15   202  (SSW)          cloudy   lt snow
     04:00    23    23     30   128   (SE)          cloudy   lt snow
     05:00    27    29     18   200  (SSW)          cloudy   lt 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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