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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
Minor-planet group
asteroid belt
Diameter
8.888
Orbital period
1679.68500571163
Show 16 more facts
time of discovery or invention
1989-10-07
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
La Silla Observatory
provisional designation
1999 XX231
orbital eccentricity
0.1697794371965276
albedo
0.032
orbital inclination
9.828698752949679
periapsis
2.295865444144418
apoapsis
3.234870716838599
semi-major axis of an orbit
2.765368080491509
mean anomaly
213.1523202168354
longitude of ascending node
48.80378449919418
argument of periapsis
38.32047463271362
absolute magnitude
14.4
time of periapsis
2461485.6606829315
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0