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21584 Polepeddi

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Also known as Polepeddi, (21584) Polepeddi

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
21585 Polmear
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
8.797
Orbital period
1935.003782329516
Show 15 more facts
provisional designation
1998 SK121
time of discovery or invention
1998-09-26
orbital eccentricity
0.1085415439563317
orbital inclination
9.230858320499484
periapsis
2.709089604753735
apoapsis
3.368792289545173
semi-major axis of an orbit
3.038940947149454
mean anomaly
244.3983846544425
longitude of ascending node
227.4702605534595
argument of periapsis
315.1178155314355
absolute magnitude
13.11
albedo
0.1
time of periapsis
2461621.8598970473
Sources (2)

via Wikidata · CC0