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(31182) 1997 YZ3

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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

Small body data

(31182) 1997 YZ3

Orbit class
Inner
Semi-major axis
1.934 AU
Eccentricity
0.067
Inclination
23.758 °
Absolute magnitude
14.870 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Diameter
1.921
Orbital period
982.3664788421173
Show 17 more facts
time of discovery or invention
1997-12-22
site of astronomical discovery
Xinglong Station
provisional designation
1997 YZ3
albedo
0.692
orbital eccentricity
0.06669616382536903
orbital inclination
23.75854014532449
periapsis
1.804983028583013
apoapsis
2.062959989804585
semi-major axis of an orbit
1.933971509193799
mean anomaly
259.9846763633844
longitude of ascending node
107.3735601483237
argument of periapsis
235.5298706381216
absolute magnitude
14.88
rotation period
380.0
time of periapsis
2461273.421392531
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0