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(31193) 1997 YP16

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minor planet

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

Small body data

(31193) 1997 YP16

Orbit class
Main-belt
Semi-major axis
2.621 AU
Eccentricity
0.136
Inclination
5.110 °
Absolute magnitude
14.660 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1549.897897860373
Show 16 more facts
time of discovery or invention
1997-12-31
discoverer or inventor
Takeshi Urata
site of astronomical discovery
Nachi-Katsuura Observatory
provisional designation
1997 YP16
albedo
0.620
orbital eccentricity
0.1359738927704561
orbital inclination
5.109994855790119
periapsis
2.264626787515557
apoapsis
2.977406453301596
semi-major axis of an orbit
2.621016620408577
mean anomaly
195.7732602809077
longitude of ascending node
285.2848920998713
argument of periapsis
196.1418943185137
absolute magnitude
14.66
time of periapsis
2461707.540774064
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0