Geostationary Transfer Orbit

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Geostationary Transfer Orbit: An orbit at modest inclination with perigee at low Earth orbit and apogee at geostationary orbit. The usual intermediate step en route to Geostationary orbit. Ariane launches directly into GTO, some other launchers launch into low Earth orbit and then boost into GTO.

Date: 01 April 1985

静止遷移軌道、静止トランスファ軌道（せいしせんいきどう、せいしトランスファきどう、geostationary transfer orbit, GTO）は、人工衛星を静止軌道にのせる前に、一時的に投入される軌道で、よく利用されるのは、遠地点が静止軌道の高度、近地点が低高度の楕円軌道である.
Parking orbit and geostationary orbit are circular and transfer orbit is elliptical. The DMB satellite, which is GEO satellite, has been launched into a parking orbit around earth with the radius of 6,674km. It is assumed that changing the velocity of the satellite can be realized by adding an impulsive delta-V parallel to the velocity vector.

Depicts: Transfer Orbit

This is slide 13 of 20 from the first Giotto slide set. The following caption is the one originally provided with the slide set.The Ariane 1 rocket places the Giotto spacecraft in a geostationary transfer orbit (nominal parameters, perigee: 200 km, apogee: 36 000 km, inclination: 10°, period: 10.5 hours). AOS MAL refers to acquisition of signal by the Malindi ground station in Kenya, LOS -loss of signal, CAR refers to the Carnarvon ground station in Australia. After nominally 3 revolutions in the GTO the onboard solid propellant boost motor is fired close to perigee (before firing the spacecraft will be spun up from 15 rpm to 90 rpm) to inject the spacecraft into the heliocentric transfer trajectory. This will be the first time that an ESA spacecraft reaches interplanetary space.

Last Update: 1 September 2019

25-Apr-2021 14:51 UT

ShortUrl Portlet

https://sci.esa.int/s/ApVo35W