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22171 Choi

Image by lehuudat on Pixabay · Pixabay License

EntityQ2478840· pop 13

22171 Choi

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Also known as Choi

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
Minor-planet group
asteroid belt
Diameter
7.528
Orbital period
1509.474812229854
Show 16 more facts
provisional designation
2000 WK179
time of discovery or invention
2000-11-26
orbital eccentricity
0.09219459268948547
absolute magnitude
14.7
orbital inclination
8.450973510280999
periapsis
2.337819953664788
apoapsis
2.812667000562258
semi-major axis of an orbit
2.575243477113523
mean anomaly
346.1885778885512
longitude of ascending node
126.3860363660279
argument of periapsis
337.5819079374079
albedo
0.037
rotation period
72.498
time of periapsis
2461058.411093884
Sources (2)

via Wikidata · CC0

Gallery (2)