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(20987) 1981 EU38

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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
2.791
Orbital period
1233.36126678047
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EU38
time of discovery or invention
1981-03-01
orbital eccentricity
0.1353631005027625
albedo
0.299
absolute magnitude
14.95
mean anomaly
330.4159981472177
longitude of ascending node
203.9869938731832
argument of periapsis
44.39943241645214
orbital inclination
3.176969787611153
periapsis
1.946084460103124
apoapsis
2.555422383370058
semi-major axis of an orbit
2.250753421736591
time of periapsis
2460901.854894449
Sources (2)

via Wikidata · CC0

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via Wikidata sitelinks · CC0