Difference between revisions of "Template:Comparison satellite navigation orbits"
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imported>Reatlas (Switching to <ref group=lower-alpha> from <ref> so as to allow use as notes, not references.) |
imported>Daranz m (<noinclude>{{Template reference list|lower-alpha}}</noinclude>) |
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| − | [[Image:Comparison_satellite_navigation_orbits.svg|thumb|249px <!-- This width avoids overlapping text -->|Comparison of '''[[GPS]]''', '''[[GLONASS]]''', '''[[Galileo_(satellite_navigation)|Galileo]]''' and '''[[Compass_navigation_system|Compass (medium earth orbit)]]''' [[satellite navigation system]] orbits with the [[International Space Station]], [[Hubble Space Telescope]] and [[Iridium constellation]] orbits, [[Geostationary Earth Orbit]], and the nominal size of the [[Earth]].<ref group=lower-alpha>Orbital periods and speeds are calculated using the relations 4π²''R''³ = ''T''²''GM'' and ''V''²''R'' = ''GM'', where ''R'' = radius of orbit in metres, ''T'' = orbital period in seconds, ''V'' = orbital speed in m/s, ''G'' = gravitational constant ≈ 6.673{{e|-11}} Nm²/kg², ''M'' = mass of Earth ≈ 5.98{{e|24}} kg.</ref> The [[Moon]]'s orbit is around 9 times larger (in radius and length) than geostationary orbit.<ref group=lower-alpha>Approximately 8.6 times when the moon is nearest (363 104 km ÷ 42 164 km) to 9.6 times when the moon is farthest (405 696 km ÷ 42 164 km).</ref>]] | + | [[Image:Comparison_satellite_navigation_orbits.svg|thumb|249px <!-- This width avoids overlapping text -->|Comparison of '''[[GPS]]''', '''[[GLONASS]]''', '''[[Galileo_(satellite_navigation)|Galileo]]''' and '''[[Compass_navigation_system|Compass (medium earth orbit)]]''' [[satellite navigation system]] orbits with the [[International Space Station]], [[Hubble Space Telescope]] and [[Iridium constellation]] orbits, [[Geostationary Earth Orbit]], and the nominal size of the [[Earth]].<ref group=lower-alpha>Orbital periods and speeds are calculated using the relations 4π²''R''³ = ''T''²''GM'' and ''V''²''R'' = ''GM'', where ''R'' = radius of orbit in metres, ''T'' = orbital period in seconds, ''V'' = orbital speed in m/s, ''G'' = gravitational constant ≈ 6.673{{e|-11}} Nm²/kg², ''M'' = mass of Earth ≈ 5.98{{e|24}} kg.</ref> The [[Moon]]'s orbit is around 9 times larger (in radius and length) than geostationary orbit.<ref group=lower-alpha>Approximately 8.6 times when the moon is nearest (363 104 km ÷ 42 164 km) to 9.6 times when the moon is farthest (405 696 km ÷ 42 164 km).</ref>]]<noinclude>{{Template reference list|lower-alpha}}</noinclude> |
Revision as of 21:51, 2 March 2013
Comparison of GPS, GLONASS, Galileo and Compass (medium earth orbit) satellite navigation system orbits with the International Space Station, Hubble Space Telescope and Iridium constellation orbits, Geostationary Earth Orbit, and the nominal size of the Earth.[lower-alpha 1] The Moon's orbit is around 9 times larger (in radius and length) than geostationary orbit.[lower-alpha 2]
References
- ↑ Orbital periods and speeds are calculated using the relations 4π²R³ = T²GM and V²R = GM, where R = radius of orbit in metres, T = orbital period in seconds, V = orbital speed in m/s, G = gravitational constant ≈ 6.673×10−11 Nm²/kg², M = mass of Earth ≈ 5.98×1024 kg.
- ↑ Approximately 8.6 times when the moon is nearest (363 104 km ÷ 42 164 km) to 9.6 times when the moon is farthest (405 696 km ÷ 42 164 km).