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100231 Monceau

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EntityQ14385545· pop 6

100231 Monceau

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Also known as Monceau

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
Diameter
9.25
Orbital period
2872.45239483731
Show 16 more facts
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
La Silla Observatory
orbital eccentricity
0.294323680966096
absolute magnitude
14.62
mean anomaly
333.6524893776825
argument of periapsis
13.75129676132111
longitude of ascending node
7.840366572351686
orbital inclination
2.782392450442263
time of discovery or invention
1994-08-12
provisional designation
1994 PB20
albedo
0.041
semi-major axis of an orbit
3.954603459899651
periapsis
2.790670012820727
apoapsis
5.118536906978576
time of periapsis
2461210.727694403
Sources (4)

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