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20529 Zwerling

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Also known as Zwerling, (20529) Zwerling

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
20530 Johnayres
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1351.900657423765
Show 15 more facts
provisional designation
1999 RM53
time of discovery or invention
1999-09-07
orbital eccentricity
0.1303373194827901
orbital inclination
6.040051695194431
periapsis
2.080886544772988
apoapsis
2.70461613664697
semi-major axis of an orbit
2.392751340709979
mean anomaly
307.8420733293869
longitude of ascending node
196.1458419235776
argument of periapsis
232.5553349643239
absolute magnitude
15.17
rotation period
86.3723
time of periapsis
2461196.367598211
Sources (2)

via Wikidata · CC0