Search results
Results from the WOW.Com Content Network
A GTO is an intermediary orbit used to make this process more efficient. Satellite operators often use a high-thrust, low-efficiency launch vehicle to put their satellite into GTO, and then, after detaching the launch vehicle, use low-thrust, high-efficiency thrusters onboard the satellite itself to circularize its orbit (to GEO) over a longer ...
Galactocentric orbit: [2] An orbit about the center of a galaxy. The Sun follows this type of orbit about the Galactic Center of the Milky Way. Heliocentric orbit: An orbit around the Sun. In the Solar System, all planets, comets, and asteroids are in such orbits, as are many artificial satellites and pieces of space debris.
A space station (or orbital station) is a spacecraft which remains in orbit and hosts humans for extended periods of time. It therefore is an artificial satellite featuring habitation facilities . The purpose of maintaining a space station varies depending on the program.
Space debris at geostationary orbits typically has a lower collision speed than at low Earth orbit (LEO) since all GEO satellites orbit in the same plane, altitude and speed; however, the presence of satellites in eccentric orbits allows for collisions at up to 4 km/s (14,400 km/h; 8,900 mph). Although a collision is comparatively unlikely, GEO ...
The European Ariane 5 first flew in 1996 and launched many commercial payloads to GTO. It benefited in this role by launching from Guiana Space Center, a spaceport near the equator in French territory. Ariane 5 often carried multiple payloads per launch and set records for mass to GTO delivered for commercial payloads.
19.2°E, 5.2°E Graveyard orbit July 2006 Astra 1B: GE-4000: Luxembourg SES: Comsat: Europe 2 March 1991 Ariane 44LP: 19.2°E Originally built as Satcom K3. In graveyard orbit 2012 ? AMC-2: Lockheed Martin A2100A: United States SES: Television and Radio Broadcasting North America: 30 January 1997 Ariane 44L (V93) 81°W, 81°W Formerly GE-2 ...
It uses liquid hydrogen (LH 2) and liquid oxygen (LOX) [20] The Indian cryogenic engine was built at the Liquid Propulsion Systems Centre. [ 21 ] [ 22 ] The engine has a default thrust of 75 kN (17,000 lb f ) but is capable of a maximum thrust of 93.1 kN (20,900 lb f ).
A large spacecraft such as the International Space Station can be constructed by assembling modules in orbit, or in-space propellant transfer conducted to greatly increase the delta-V capabilities of a cislunar or deep space vehicle. Distributed launch enables space missions that are not possible with single launch architectures. [13]