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6639 Marchis

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Also known as Marchis

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
Followed by
6640 Falorni
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
14.132
Orbital period
2064.106155476667
Show 17 more facts
discoverer or inventor
Henri Debehogne
provisional designation
1989 SO8
site of astronomical discovery
La Silla Observatory
time of discovery or invention
1989-09-25
orbital eccentricity
0.1351309327363496
absolute magnitude
12.89
orbital inclination
2.505041945171872
periapsis
2.743928344317608
apoapsis
3.601375119937605
semi-major axis of an orbit
3.172651732127606
mean anomaly
196.0398072687953
longitude of ascending node
68.97019873392875
argument of periapsis
221.9379576937925
albedo
0.064
rotation period
59.848
time of periapsis
2461940.5867863046
Sources (2)

via Wikidata · CC0