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21128 Chapuis

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Also known as Chapuis

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
Parent body
Sun
Diameter
18.388
Orbital period
2876.491794444932
Show 17 more facts
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
Côte d'Azur Observatory
provisional designation
1999 XH193
time of discovery or invention
1993-01-27
asteroid family
Hilda group
orbital eccentricity
0.1072182824253349
absolute magnitude
12.17
orbital inclination
7.92297858315689
periapsis
3.533906840286669
apoapsis
4.382713248858742
semi-major axis of an orbit
3.958310044572706
mean anomaly
330.6811220761255
longitude of ascending node
316.8134347066928
argument of periapsis
266.6323991720359
albedo
0.074
time of periapsis
2461234.7653104733
Sources (2)

via Wikidata · CC0