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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

(73574) 4783 P-L

Orbit class
Main-belt
Semi-major axis
2.483 AU
Eccentricity
0.129
Inclination
1.585 °
Absolute magnitude
15.310 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(73575) 4789 P-L
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.49
Orbital period
1429.235451770918
Show 16 more facts
time of discovery or invention
1960-09-24
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
4783 P-L
albedo
0.049
absolute magnitude
15.31
orbital eccentricity
0.1285625642789421
semi-major axis of an orbit
2.483153510980653
periapsis
2.163912928110722
apoapsis
2.802394093850583
orbital inclination
1.58469201683948
longitude of ascending node
199.1734148423884
argument of periapsis
345.5310765319838
mean anomaly
66.1473162326146
time of periapsis
2460737.888640558
Sources (2)

via Wikidata · CC0

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via Wikidata sitelinks · CC0