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(8658) 1990 RG3

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main-belt 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

(8658) 1990 RG3

Orbit class
Main-belt
Semi-major axis
2.880 AU
Eccentricity
0.055
Inclination
1.803 °
Absolute magnitude
13.290 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(8659) 1990 SE11
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.5
Orbital period
1783.473415018111
Show 16 more facts
provisional designation
1996 XX25
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
time of discovery or invention
1990-09-14
orbital eccentricity
0.05416465435806326
albedo
0.368
orbital inclination
1.802972407046751
periapsis
2.722247963281257
apoapsis
3.034035042686705
semi-major axis of an orbit
2.878141502983981
mean anomaly
52.37053062956173
longitude of ascending node
182.8048641290818
argument of periapsis
197.1518307051546
absolute magnitude
13.29
time of periapsis
2460741.051530255
Sources (3)

via Wikidata · CC0