Difference between revisions of "Template:Comparison satellite navigation orbits"
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| − | [[Image:Comparison_satellite_navigation_orbits.svg|thumb|{{{1|250px}}}|link={{filepath:comparison_satellite_navigation_orbits.svg}}|Comparison of [[Geostationary Earth Orbit|geostationary]], '''[[GPS]]''', '''[[GLONASS]]''', '''[[ | + | [[Image:Comparison_satellite_navigation_orbits.svg|thumb|{{{1|250px}}}|link={{filepath:comparison_satellite_navigation_orbits.svg}}|Comparison of [[Geostationary Earth Orbit|geostationary]], '''[[GPS]]''', '''[[GLONASS]]''', '''[[Galileo (satellite navigation)|Galileo]]''', '''[[Compass navigation system|Compass (MEO)]]''', [[International Space Station]], [[Hubble Space Telescope]], [[Iridium constellation]] and [[graveyard orbit]]s, with the [[Van Allen radiation belt]]s and the [[Earth]] to scale.<ref group=lower-alpha>Orbital periods and speeds are calculated using the relations 4π<sup>2</sup>''R''<sup>3</sup> = ''T''<sup>2</sup>''GM'' and ''V''<sup>2</sup>''R'' = ''GM'', where ''R'', radius of orbit in metres; ''T'', orbital period in seconds; ''V'', orbital speed in m/s; ''G'', gravitational constant, approximately {{val|6.673|e=-11|u=Nm<sup>2</sup>/kg<sup>2</sup>}}; ''M'', mass of Earth, approximately {{val|5.98|e=24|u=kg}}.</ref> The [[Moon]]'s orbit is around 9 times as large as geostationary orbit.<ref group=lower-alpha>Approximately 8.6 times (in radius and length) when the moon is nearest ({{val|363104|u=km}} ÷ {{val|42164|u=km}}) to 9.6 times when the moon is farthest ({{val|405696|u=km}} ÷ {{val|42164|u=km}}).</ref> (In [{{filepath:comparison_satellite_navigation_orbits.svg}} the SVG file,] hover over an orbit or its label to highlight it; click to load its article.)]]<noinclude> |
| + | {{Template reference list|lower-alpha}} | ||
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Revision as of 16:48, 14 July 2020
Comparison of geostationary, GPS, GLONASS, Galileo, Compass (MEO), International Space Station, Hubble Space Telescope, Iridium constellation and graveyard orbits, with the Van Allen radiation belts and the Earth to scale.[lower-alpha 1] The Moon's orbit is around 9 times as large as geostationary orbit.[lower-alpha 2] (In the SVG file, hover over an orbit or its label to highlight it; click to load its article.)
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, approximately Template:Val; M, mass of Earth, approximately Template:Val.
- ↑ Approximately 8.6 times (in radius and length) when the moon is nearest (Template:Val ÷ Template:Val) to 9.6 times when the moon is farthest (Template:Val ÷ Template:Val).