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(20781) 2000 RX38

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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

(20781) 2000 RX38

Orbit class
Main-belt
Semi-major axis
2.322 AU
Eccentricity
0.177
Inclination
5.980 °
Absolute magnitude
15.440 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
20782 Markcroce
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
2.361
Orbital period
1292.537970203013
Show 15 more facts
provisional designation
2000 RX38
time of discovery or invention
2000-09-05
orbital eccentricity
0.1760595805582419
albedo
0.317
orbital inclination
5.982603327013178
periapsis
1.913341084213336
apoapsis
2.731026491562778
semi-major axis of an orbit
2.322183787888057
mean anomaly
100.1618875064524
longitude of ascending node
272.1984057254755
argument of periapsis
67.82211015828925
absolute magnitude
15.44
time of periapsis
2460640.880436752
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0