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(17384) 1981 EM12

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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
Diameter
6.399
Orbital period
2099.239158655209
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EM12
time of discovery or invention
1981-03-01
absolute magnitude
14.79
orbital eccentricity
0.07396740828267269
orbital inclination
15.6512633357274
periapsis
2.971223126165179
apoapsis
3.445879582185607
semi-major axis of an orbit
3.208551354175393
mean anomaly
171.7006685870083
longitude of ascending node
339.3131025617101
argument of periapsis
297.4429638356044
albedo
0.057
time of periapsis
2459799.2756470414
Sources (3)

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