[time-nuts] GPS Arctic graphs
Hal Murray
hmurray at megapathdsl.net
Sun Aug 27 06:54:06 EDT 2017
Elevation vs time for several satellites, 24 hours
http://users.megapathdsl.net/~hmurray/time-nuts/Arctic/Elev-A.png
Polar plot of the same satellites.
http://users.megapathdsl.net/~hmurray/time-nuts/Arctic/Polar-A.png
(see if I get this right)
The satellites go around twice per day. Relative to the peak of the first
orbit, the Earth (and receiver) has rotated 180 degrees so the second peak is
over the pole.
Elevation vs time for a single satellite
http://users.megapathdsl.net/~hmurray/time-nuts/Arctic/Elev-07.png
That shows how far the satellite orbit drifts over 4 days.
Polar plot of all 31 active satellites, 24 hours
http://users.megapathdsl.net/~hmurray/time-nuts/Arctic/Polar-all.png
SVN 04 wasn't active.
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