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19980 Barrysimon

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Also known as Barrysimon

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
19981 Bialystock
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.601
Orbital period
1316.117552029297
Show 16 more facts
discoverer or inventor
David H. Levy
site of astronomical discovery
Palomar Observatory
provisional designation
2000 UL16
time of discovery or invention
1989-11-22
orbital eccentricity
0.2549926485132968
absolute magnitude
14.32
orbital inclination
21.62738579543363
periapsis
1.751021160171083
apoapsis
2.949660401364715
semi-major axis of an orbit
2.350340780767899
mean anomaly
323.2331538302066
longitude of ascending node
221.4030868459573
argument of periapsis
261.9382252053097
albedo
0.312
time of periapsis
2461134.91525438
Sources (2)

via Wikidata · CC0