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9159 McDonnell

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9159 McDonnell

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Also known as McDonnell

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

Orbital period
1311.292094352749
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provisional designation
1991 PR11
time of discovery or invention
1984-10-26
orbital eccentricity
0.1149001822467337
absolute magnitude
14.04
orbital inclination
6.396224452491841
periapsis
2.07519826357682
apoapsis
2.613986440685112
semi-major axis of an orbit
2.344592352130966
mean anomaly
157.0257695275252
longitude of ascending node
207.4758107119104
argument of periapsis
183.8309818031236
time of periapsis
2460428.5370828025
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