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(9928) 1981 WE9

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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
Followed by
9929 McConnell
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
2.441
Orbital period
1205.832887184348
Image
AnimatedOrbitOf99281981WE9.gif
Show 17 more facts
provisional designation
1993 FC43
site of astronomical discovery
Perth Observatory
time of discovery or invention
1981-11-16
discoverer or inventor
Perth Observatory
orbital inclination
2.848710989985008
orbital eccentricity
0.1775876785664568
albedo
0.428
periapsis
1.823400515889408
apoapsis
2.610872824546559
semi-major axis of an orbit
2.217136670217984
mean anomaly
155.749777402747
longitude of ascending node
179.3473380205643
argument of periapsis
176.0181900167128
absolute magnitude
14.83
rotation period
18.398
time of periapsis
2460478.8105451004
Sources (4)

via Wikidata · CC0