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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 ...
This is a list of space probes that have left Earth orbit (or were launched with that intention but failed), organized by their planned destination. It includes planetary probes, solar probes, and probes to asteroids and comets, but excludes lunar missions, which are listed separately at List of lunar probes and List of Apollo missions.
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]
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A geostationary orbit, as viewed from above the North Pole. A satellite whose orbital period is an integer fraction of a day (e.g., 24 hours, 12 hours, 8 hours, etc.) will follow roughly the same ground track every day.
Sample Return: Launch failure Failed to orbit. 98: Luna 24 (E-8-5M No.413) Luna 24: 9 August 1976: Proton-K/D: Lavochkin: Lander: Success Luna 24 return craft: Sample Return: Success Entered orbit on 11 August 1976 and landed in Mare Crisium at 16:36 UTC on 18 August. Sample capsule launched at 05:25 UTC on 19 August and recovered 96 + 1 ⁄ 2 ...
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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 . Argentina