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(31425) 1999 BF3

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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

(31425) 1999 BF3

Orbit class
Main-belt
Semi-major axis
2.461 AU
Eccentricity
0.194
Inclination
8.819 °
Absolute magnitude
13.790 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.062
Orbital period
1410.661384794762
Show 17 more facts
time of discovery or invention
1999-01-16
discoverer or inventor
Hiroshi Kaneda
provisional designation
1999 BF3
albedo
0.247
orbital eccentricity
0.1947730342769117
orbital inclination
8.818542668569766
periapsis
1.982140998235387
apoapsis
2.9410448428037
semi-major axis of an orbit
2.461592920519544
mean anomaly
298.0785925221378
longitude of ascending node
113.5357969177019
argument of periapsis
76.74444378390372
absolute magnitude
13.74
site of astronomical discovery
Kushiro
rotation period
9.04
time of periapsis
2461243.139273392
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0