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25476 Sealfon

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Also known as Sealfon

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

Small body data

(25476) Sealfon

Orbit class
Main-belt
Semi-major axis
2.353 AU
Eccentricity
0.127
Inclination
2.901 °
Absolute magnitude
15.530 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
25477 Preyashah
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1319.045824347392
Show 14 more facts
time of discovery or invention
1999-12-07
provisional designation
1999 XU42
orbital eccentricity
0.1270328936542538
orbital inclination
2.901513885462573
periapsis
2.0548124292537
apoapsis
2.652839014464899
semi-major axis of an orbit
2.3538257218593
mean anomaly
91.55237462014996
longitude of ascending node
249.7838068068862
argument of periapsis
139.8333854378236
absolute magnitude
15.54
time of periapsis
2460665.0506181894
Sources (2)

via Wikidata · CC0