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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
Minor-planet group
asteroid belt
Diameter
4.017
Orbital period
1907.534105679068
Show 17 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1999 RB186
time of discovery or invention
1981-03-02
orbital eccentricity
0.111478123852042
albedo
0.209
absolute magnitude
14.62
periapsis
2.674549959900058
apoapsis
3.345673135776853
semi-major axis of an orbit
3.010111547838455
mean anomaly
249.5021595214745
longitude of ascending node
354.8153770862711
argument of periapsis
82.70013704102594
orbital inclination
10.58068087338638
rotation period
3.389
time of periapsis
2461385.9955536574
Sources (3)

via Wikidata · CC0

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