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21415 Nicobrenner

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Also known as Nicobrenner, (21415) Nicobrenner

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
21416 Sisichen
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.581
Orbital period
1367.947156301066
Show 16 more facts
provisional designation
1998 FM70
time of discovery or invention
1998-03-20
orbital eccentricity
0.2090117283248421
orbital inclination
2.658581589836079
mean anomaly
32.77906523302591
longitude of ascending node
49.97925276556629
argument of periapsis
271.1803443604963
absolute magnitude
14.52
periapsis
1.907585328056999
apoapsis
2.915710784835062
semi-major axis of an orbit
2.411648056446031
albedo
0.315
rotation period
3.37
time of periapsis
2460875.9443636895
Sources (2)

via Wikidata · CC0