Template:Comparison satellite navigation orbits: Difference between revisions

[[Image:Comparison_satellite_navigation_orbits.svg|thumb|{{{1|250px}}}|link={{filepath:comparison_satellite_navigation_orbits.svg}}|Clickable image, highlighting [[Medium Earth Orbit|medium altitude orbits around Earth]],<ref group=lower-alpha>Orbital periods and speeds are calculated using the relations 4π²''R''³&nbsp;=&nbsp;''T''²''GM'' and ''V''²''R''&nbsp;=&nbsp;''GM'', where ''R'' is the radius of orbit in metres; ''T'' is the orbital period in seconds; ''V'' is the orbital speed in m/s; ''G'' is the gravitational constant, approximately {{val|6.673|e=-11|u=Nm²/kg²}}; ''M'' is the mass of Earth, approximately {{cvt|5.98e24|kg}}.</ref> from [[Low Earth orbit|Low Earth]] to the lowest [[High Earth orbit|High Earth orbit]] ([[geostationary Earth orbit|geostationary orbit]] and its [[graveyard orbit]], at one ninth of the [[lunar distance|Moon's orbital distance]]),<ref group=lower-alpha>Approximately 8.6 times when the Moon is nearest {{nowrap|(that is, {{sfrac|{{cvt|363104|km|km|disp=out}}|{{cvt|42164|km|km|disp=out}}}})}}, to 9.6 times when the Moon is farthest {{nowrap|(that is, {{sfrac|{{cvt|405696|km|km|disp=out}}|{{cvt|42164|km|km|disp=out}}}})}}.</ref> with the [[Van Allen radiation belt]]s and the [[Earth]] to scale.]]

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