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3685 Derdenye

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Also known as Derdenye, (3685) Derdenye

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
3686 Antoku
Follows
3684 Berry
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
10.17
Orbital period
1589.536235086047
Show 17 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EH14
time of discovery or invention
1981-03-01
orbital eccentricity
0.1765108216722306
semi-major axis of an orbit
2.665516266099725
mean anomaly
243.8822306926046
longitude of ascending node
202.7485310243515
argument of periapsis
183.0485856072054
absolute magnitude
13.56
orbital inclination
15.1512771737758
periapsis
2.195023799789766
apoapsis
3.136008732409684
albedo
0.0817
rotation period
159.866
time of periapsis
2461513.2038940317
Sources (2)

via Wikidata · CC0