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21431 Amberhess

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Also known as Amberhess

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

Instance of
asteroid
Followed by
21432 Polingloh
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
2.429
Orbital period
1308.888135166684
Show 15 more facts
provisional designation
1998 FR113
time of discovery or invention
1998-03-31
orbital eccentricity
0.1104091373857955
orbital inclination
6.197668834386498
periapsis
2.083178011395988
apoapsis
2.600273896538941
semi-major axis of an orbit
2.341725953967465
mean anomaly
198.7739787560966
longitude of ascending node
248.2231742955523
argument of periapsis
18.54232466599565
absolute magnitude
15.27
albedo
0.249
time of periapsis
2461586.685628573
Sources (2)

via Wikidata · CC0