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EntityQ155263· pop 26· linked from 12 articles

Also known as (53311) 1999 HU11, 1999 HU11, Deucalion

minor planet

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

Orbital period
106193.4058271317
Image
AnimatedOrbitOf53311Deucalion.gif
Show 13 more facts
time of discovery or invention
1999-04-18
provisional designation
1999 HU11
orbital eccentricity
0.05883108343060778
absolute magnitude
6.6
mean anomaly
308.5534485677996
argument of periapsis
244.0446919254613
longitude of ascending node
51.29794638316645
orbital inclination
0.366176923808389
Commons category
53311 Deucalion
semi-major axis of an orbit
43.8866820778644
periapsis
41.304781023049
apoapsis
46.4685831326798
time of periapsis
2476176.290318461
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