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85511 Celnik

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Also known as Celnik

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
85512 Rieugnie
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1379.315660492967
Show 14 more facts
discoverer or inventor
Bernd Koch
time of discovery or invention
1997-10-30
provisional designation
2001 UU122
orbital eccentricity
0.2059588435557277
absolute magnitude
16.51
mean anomaly
183.8445280884219
argument of periapsis
240.0457951670314
longitude of ascending node
98.79689553067026
orbital inclination
2.383233493853214
semi-major axis of an orbit
2.424991162236642
periapsis
1.925542786829523
apoapsis
2.924439537643762
time of periapsis
2461675.4277808033
Sources (2)

via Wikidata · CC0

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via Wikidata sitelinks · CC0