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(73618) 2458 T-3

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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

(73618) 2458 T-3

Orbit class
Main-belt
Semi-major axis
3.016 AU
Eccentricity
0.081
Inclination
4.343 °
Absolute magnitude
15.010 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(73619) 3322 T-3
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.699
Orbital period
1913.716245613676
Show 16 more facts
time of discovery or invention
1977-10-16
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
2458 T-3
albedo
0.187
absolute magnitude
15.01
orbital eccentricity
0.0801564080354002
semi-major axis of an orbit
3.016611700249428
periapsis
2.774810941919872
apoapsis
3.258412458578984
orbital inclination
4.339282007075216
longitude of ascending node
350.0174810051298
argument of periapsis
50.11224478882615
mean anomaly
53.51692755422073
time of periapsis
2460716.010517567
Sources (2)

via Wikidata · CC0

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via Wikidata sitelinks · CC0