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(30812) 1990 OZ4

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minor planet

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

(30812) 1990 OZ4

Orbit class
Main-belt
Semi-major axis
2.273 AU
Eccentricity
0.197
Inclination
4.947 °
Absolute magnitude
15.500 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
1.449
Orbital period
1250.53867394553
Show 16 more facts
time of discovery or invention
1990-07-25
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
provisional designation
2000 HC14
albedo
0.484
orbital eccentricity
0.1979093501274844
orbital inclination
4.949811109919517
periapsis
1.8213677
apoapsis
2.721174682226343
semi-major axis of an orbit
2.271603174260847
mean anomaly
128.1160792236293
longitude of ascending node
228.5926005778774
argument of periapsis
57.03596089514323
absolute magnitude
15.5
time of periapsis
2460555.4608004903
Sources (4)

via Wikidata · CC0

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via Wikidata sitelinks · CC0