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9923 Ronaldthiel

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Also known as (9923) 1981 EB24, Ronaldthiel

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
9924 Corrigan
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.084
Orbital period
1721.911330304578
Image
AnimatedOrbitOf99231981EB24.gif
Show 16 more facts
provisional designation
1981 EB24
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
time of discovery or invention
1981-03-07
orbital inclination
4.401520414955145
orbital eccentricity
0.06990379447731968
absolute magnitude
14.31
periapsis
2.614986456060866
apoapsis
3.008058645152806
semi-major axis of an orbit
2.811522550606836
mean anomaly
243.6956073504572
longitude of ascending node
11.92819650556387
argument of periapsis
83.30968666255278
albedo
0.243
time of periapsis
2461556.794031854
Sources (2)

via Wikidata · CC0