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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
12.394
Orbital period
2882.153016505245
Show 16 more facts
time of discovery or invention
1981-03-02
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1997 HH18
albedo
0.035
orbital eccentricity
0.1309133519613013
orbital inclination
1.96309630985472
periapsis
3.444626587570995
apoapsis
4.482377228089081
semi-major axis of an orbit
3.963501907830038
mean anomaly
217.9154769849793
longitude of ascending node
236.4317754527865
argument of periapsis
288.8056573266951
absolute magnitude
13.77
time of periapsis
2461938.025935018
Sources (3)

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