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51985 Kirby

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Also known as (51985) 2001 SA116, Kirby

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
Orbital period
2091.423475467632
Show 15 more facts
discoverer or inventor
Roy A. Tucker
site of astronomical discovery
Goodricke-Pigott Observatory
orbital eccentricity
0.09977898068883116
absolute magnitude
13.85
mean anomaly
294.2
argument of periapsis
285.5364399676994
longitude of ascending node
270.0703421713868
orbital inclination
5.857577727205137
time of discovery or invention
2001-09-22
provisional designation
1999 GG51
semi-major axis of an orbit
3.200582559926763
periapsis
2.88123169448682
apoapsis
3.519933425366705
time of periapsis
2461756.6764531992
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