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Orbits around the L 1 point are used by spacecraft that want a constant view of the Sun, such as the Solar and Heliospheric Observatory. Orbits around L 2 are used by missions that always want both Earth and the Sun behind them. This enables a single shield to block radiation from both Earth and the Sun, allowing passive cooling of sensitive ...
As a result of the changes in systems, flights under different numbering systems could have the same number with one having a letter appended, e.g. flight STS-51 (a mission carried out by Discovery in 1993) was many years after STS-51-A (Discovery's second flight in 1984). [6]
First lunar sample return mission by China. Ascent stage deorbited on 7 December 2020. Capsule successfully returned sample via service module on 16 December 2020. The orbiter will make lunar flyby in extended mission on 9 September 2021 in Distant retrograde orbit. [7] CAPSTONE: USA 14 November 2022 Active and on a Near-rectilinear halo orbit ...
This is a list of conventional orbital launch systems. This is composed of launch vehicles, and other conventional systems, used to place satellites into orbit.
Pages in category "Orbits" The following 121 pages are in this category, out of 121 total. This list may not reflect recent changes. ...
Number Launch date COSPAR-ID Function Launch vehicle Other designations Status Remarks USA-1: 1984-06-13 Navigation: Atlas E/F: Navstar-9: Out of service USA-2: 1984-05-25 1984-065A Reconnaissance: Titan 34D: KH-9: Deorbited: 18 October 1984 Launched with USA-3 USA-3: 1984-05-25 1984-065C ELINT: Titan 34D: SSF-D: Out of service Launched with ...
This is a list of trans-Neptunian objects (TNOs), which are minor planets in the Solar System that orbit the Sun at a greater distance on average than Neptune, that is, their orbit has a semi-major axis greater than 30.1 astronomical units (AU). The Kuiper belt, scattered disk, and Oort cloud are three conventional divisions of this volume of ...
Completed ten orbits of the Moon before returning to Earth with an engine burn at 06:10:16 UTC on 25 December. Landed in the Pacific Ocean at 15:51 UTC on 27 December. [66] 65: Soyuz 7K-L1 No.13L: Soyuz 7K-L1 No.13L: 20 January 1969: Proton-K/D: Lavochkin: Flyby: Launch failure Technology demonstration for planned crewed missions.