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Groups > comp.graphics.apps.gnuplot > #3715

Re: Ephemerides data

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Am 20.08.2017 um 10:36 schrieb robertvanpass@gmail.com:
> Hi,
> 
> I have difficulties to plot ephemerides data.
> They are generated by SkytechX in the following format:
> 
> Date;Time;Local R.A.;Local Dec.;
> 8/20/2017;12:00:00 UTC+1.0;10h 35m 50.60s;+03° 47' 15.38";
> 8/21/2017;12:00:00 UTC+1.0;10h 33m 13.63s;+04° 02' 23.70";
> 8/22/2017;12:00:00 UTC+1.0;10h 30m 23.99s;+04° 20' 34.64";
> ...
> 
> The column "Local R.A." is in time format: Hours Minits Seconds,
> should be converted to: Hours + Minits/60 + Seconds/3600.
> 
> Column "Local Dec." is in angle format: Degrees Arcminits Arcseconds,
> should be converted to Degrees + Arcminits/60 + Arcseconds/3600.
> 
> So the first record should become:
> 8/20/2017;12:00:00 UTC+1.0;10.587606;3.787606";

$dat << EOD
8/20/2017;12:00:00 UTC+1.0;10h 35m 50.60s;+03° 47' 15.38";
8/21/2017;12:00:00 UTC+1.0;10h 33m 13.63s;+04° 02' 23.70";
8/22/2017;12:00:00 UTC+1.0;10h 30m 23.99s;+04° 20' 34.64";
EOD

set dataf sep "; \"
set table

plot $dat us \
	(timecolumn(1,"%d/%m/%Y")):\
	(timecolumn(2,"%H:%M:%S")):\
	(timecolumn(4,"%Hh %Mm %Ss")/3600):\
	(($7+$8/60+$9/3600)) w table

gives

 1.53369e+009 43200 10.5974 3.78761
 1.53636e+009 43200 10.5538 4.03992
 1.53896e+009 43200 10.5067 4.34296

	
This ignores the timezone specifier, I'm not sure how to catch that.
The date is in unix time.

Best, Karl

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Ephemerides data robertvanpass@gmail.com - 2017-08-20 06:36 -0700
  Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-20 22:56 -0300
    Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-20 23:59 -0300
      Re: Ephemerides data robertvanpass@gmail.com - 2017-08-21 15:01 -0700
        Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-22 03:59 +0200
          Re: Ephemerides data robertvanpass@gmail.com - 2017-08-22 07:57 -0700
            Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-22 19:09 +0200
              Re: Ephemerides data robertvanpass@gmail.com - 2017-08-22 14:09 -0700
                Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-23 01:45 +0200
                Re: Ephemerides data robertvanpass@gmail.com - 2017-08-23 13:09 -0700

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