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21611 Rosoff

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Also known as Rosoff, (21611) Rosoff

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

Diameter
4.363
Orbital period
1598.864740914184
Show 13 more facts
provisional designation
1999 JV50
time of discovery or invention
1999-05-10
orbital eccentricity
0.1970798248316477
mean anomaly
298.5393498478133
longitude of ascending node
213.3001422201242
argument of periapsis
126.6863991254099
absolute magnitude
14.2
orbital inclination
12.56959698357689
periapsis
2.14856206205678
apoapsis
3.20330759698194
semi-major axis of an orbit
2.67593482951936
albedo
0.233
time of periapsis
2461273.4646291165
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via Wikidata · CC0

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