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(15664) 4050 T-3

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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

Small body data

(15664) 4050 T-3

Orbit class
Main-belt
Semi-major axis
2.555 AU
Eccentricity
0.144
Inclination
5.077 °
Absolute magnitude
14.740 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(15665) 4094 T-3
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1491.694524989018
Show 16 more facts
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
4204 T-1
time of discovery or invention
1977-10-16
orbital eccentricity
0.1438191855210992
albedo
0.756
orbital inclination
5.076099939189119
periapsis
2.187525567650782
apoapsis
2.922436091516227
semi-major axis of an orbit
2.554980829583505
mean anomaly
205.2974856934461
longitude of ascending node
135.4892461208067
argument of periapsis
284.2625202384992
absolute magnitude
14.74
time of periapsis
2461441.524704425
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0