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21991 Zane

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EntityQ2613360· pop 12

21991 Zane

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Also known as Zane

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
3.985
Orbital period
1742.238851008163
Show 15 more facts
provisional designation
1999 XM23
time of discovery or invention
1999-12-06
orbital eccentricity
0.09009265882076392
absolute magnitude
14.75
orbital inclination
3.129327647533645
periapsis
2.578319186443292
apoapsis
3.088893440068329
semi-major axis of an orbit
2.833606313255811
mean anomaly
209.6803560734476
longitude of ascending node
113.0204838401918
argument of periapsis
239.5092881550942
albedo
0.193
time of periapsis
2461727.979788107
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via Wikidata · CC0

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