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9831 Simongreen

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Also known as Simongreen

asteroid

Picture of the Day · NASA

Pathfinder on Mars

Pathfinder on Mars

2026-07-04

On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.

via NASA APOD

Wikidata facts

Orbital period
1372.864103798021
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provisional designation
1998 SS129
time of discovery or invention
1979-08-22
orbital eccentricity
0.2102987445889476
absolute magnitude
15.33
orbital inclination
2.408148899002844
periapsis
1.909042412112792
apoapsis
2.925804687425133
semi-major axis of an orbit
2.417423549768963
mean anomaly
93.32492585105247
longitude of ascending node
168.4332785942782
argument of periapsis
188.3728111782045
time of periapsis
2460644.604331415
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via Wikidata · CC0

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