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(99368) 2001 XE221

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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
14.939
Orbital period
4460.330145800453
Show 15 more facts
time of discovery or invention
2001-12-15
provisional designation
2001 XE221
albedo
0.114
absolute magnitude
12.58
orbital eccentricity
0.01886368352016606
semi-major axis of an orbit
5.302887159444733
periapsis
5.202855174325815
apoapsis
5.402919144563652
orbital inclination
5.83443873020974
longitude of ascending node
256.4544781195179
argument of periapsis
6.460059742844869
mean anomaly
126.0871016723701
time of periapsis
2459238.3052761503
Sources (3)

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