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]]''', '''[[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>&nbsp;=&nbsp;''T''<sup>2</sup>''GM'' and ''V''<sup>2</sup>''R''&nbsp;=&nbsp;''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&nbsp;SVG&nbsp;file,] hover over an orbit or its label to highlight it; click to load its article.)]]<noinclude>
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[[Image:Comparison_satellite_navigation_orbits.svg|thumb|{{{1|250px}}}|link={{filepath:comparison_satellite_navigation_orbits.svg}}|Orbit size comparison of [[GPS]], [[GLONASS]], [[Galileo (satellite navigation)|Galileo]], [[BeiDou-2]], and [[Iridium constellation|Iridium]] constellations, the [[International Space Station]], the [[Hubble Space Telescope]], and [[geostationary Earth orbit|geostationary orbit]] (and its [[graveyard orbit]]), 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>&nbsp;=&nbsp;''T''<sup>2</sup>''GM'' and ''V''<sup>2</sup>''R''&nbsp;=&nbsp;''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>{{paragraph}}
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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&nbsp;SVG&nbsp;file,] hover over an orbit or its label to highlight it; click to load its article.)]]<noinclude>
 
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Latest revision as of 23:50, 14 July 2020

Orbit size comparison of GPS, GLONASS, Galileo, BeiDou-2, and Iridium constellations, the International Space Station, the Hubble Space Telescope, and geostationary orbit (and its graveyard orbit), with the Van Allen radiation belts and the Earth to scale.[lower-alpha 1]Template:Paragraph 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

  1. 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.
  2. 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).