Geostationary transfer orbit | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-05-06

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Geostationary_transfer_orbit


00:00:51 1 Technical description
00:06:35 2 Other considerations
00:10:12 3 See also



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SUMMARY
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A geosynchronous transfer orbit or geostationary transfer orbit (GTO) is a Hohmann transfer orbit—an elliptical orbit used to transfer between two circular orbits of different radii in the same plane—used to reach geosynchronous or geostationary orbit using high-thrust chemical engines.Geosynchronous orbits (GSO) are useful for various civilian and military purposes, but demand a great deal of delta-v to attain. Since, for station-keeping, satellites intended for this orbit typically carry highly efficient but low-thrust engines, total mass delivered to GSO is generally maximized if the launch vehicle provides only the delta-v required to be at high thrust, i.e., to escape Earth's atmosphere and overcome gravitational losses, and the satellite provides the delta-v required to turn the resulting intermediate orbit, which is the GTO, into the useful GSO.