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7987 Walshkevin

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Also known as (7987) 1981 EV22, Walshkevin

minor planet

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
Followed by
7988 Pucacco
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1686.395784661177
Show 15 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EV22
time of discovery or invention
1981-03-02
orbital eccentricity
0.2032966128655037
absolute magnitude
13.96
orbital inclination
3.303897325353724
periapsis
2.209042395993834
apoapsis
3.336415127261084
semi-major axis of an orbit
2.77272876162746
mean anomaly
18.06451044877609
longitude of ascending node
168.2970596116006
argument of periapsis
221.8456244223047
time of periapsis
2460915.878015909
Sources (2)

via Wikidata · CC0