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(16855) 1997 YN7

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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
16856 Banach
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.131
Orbital period
1533.912777033128
Show 16 more facts
discoverer or inventor
Takao Kobayashi
site of astronomical discovery
Ōizumi Observatory
orbital eccentricity
0.125141092039237
albedo
0.267
absolute magnitude
13.76
orbital inclination
15.56857164611881
periapsis
2.277226227113601
apoapsis
2.92870173770912
semi-major axis of an orbit
2.602963982411361
mean anomaly
275.8703343701962
longitude of ascending node
110.4826430935743
argument of periapsis
274.5239265840646
time of discovery or invention
1997-12-27
provisional designation
1997 YN7
time of periapsis
2461158.9654695475
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0