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22812 Ricker

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Also known as Ricker

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
5.064
Orbital period
1376.434687125634
Show 16 more facts
time of discovery or invention
1999-09-07
provisional designation
1999 RY15
orbital eccentricity
0.1613058508758595
longitude of ascending node
222.8769365330243
argument of periapsis
207.0836852003312
absolute magnitude
15.73
orbital inclination
2.046536624783908
periapsis
2.030992881079728
apoapsis
2.812233659133342
semi-major axis of an orbit
2.421613270106535
mean anomaly
277.6030769910857
albedo
0.048
rotation period
129.207
time of periapsis
2461315.538841505
Sources (2)

via Wikidata · CC0