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(19937) 1981 EF15

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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
3.761
Orbital period
1970.897107594658
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EF15
time of discovery or invention
1981-03-01
absolute magnitude
14.69
orbital eccentricity
0.06862690039119336
orbital inclination
9.010638465601668
periapsis
2.865282014990867
apoapsis
3.287530464120537
semi-major axis of an orbit
3.076406239555702
mean anomaly
327.4530849140328
longitude of ascending node
325.6624854614195
argument of periapsis
319.5398605494914
albedo
0.165
time of periapsis
2460978.685057789
Sources (3)

via Wikidata · CC0

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