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(19103) 1981 ER11

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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
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
2.496
Orbital period
1538.930353786432
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 ER11
time of discovery or invention
1981-03-07
orbital eccentricity
0.06688199126238477
albedo
0.179
absolute magnitude
15.68
orbital inclination
2.404648497890662
periapsis
2.434166402337806
apoapsis
2.783108110734575
semi-major axis of an orbit
2.60863725653619
mean anomaly
197.8613661034505
longitude of ascending node
289.7756829182505
argument of periapsis
213.9487233760999
time of periapsis
2461493.6112922914
Sources (3)

via Wikidata · CC0

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