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21075 Heussinger

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Also known as Heussinger

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
21076 Kokoschka
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.561
Orbital period
1376.433282533706
Show 16 more facts
discoverer or inventor
Freimut Börngen
site of astronomical discovery
Karl Schwarzschild Observatory
provisional designation
1991 RF4
time of discovery or invention
1991-09-12
orbital eccentricity
0.1783028154606364
orbital inclination
2.229745464305131
periapsis
1.989831452397393
apoapsis
2.853391792946633
semi-major axis of an orbit
2.421611622672013
mean anomaly
67.40183530499374
longitude of ascending node
258.1887086449842
argument of periapsis
48.85461695741544
absolute magnitude
15.64
albedo
0.057
time of periapsis
2460742.794084951
Sources (2)

via Wikidata · CC0