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15963 Koeberl

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Also known as Koeberl

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
15964 Billgray
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
8.59
Orbital period
1601.003961559512
Show 17 more facts
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
La Silla Observatory
provisional designation
1999 JL15
time of discovery or invention
1998-02-06
orbital eccentricity
0.1750733527490941
orbital inclination
13.25834082289392
periapsis
2.209418498145408
apoapsis
3.147223830013986
semi-major axis of an orbit
2.678321164079697
mean anomaly
224.0217117619609
longitude of ascending node
150.7735979141834
argument of periapsis
243.4899365363684
absolute magnitude
13.17
albedo
0.166
rotation period
13.0685
time of periapsis
2461605.227161542
Sources (2)

via Wikidata · CC0