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(163818) 2003 RX7

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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

(163818) 2003 RX7

Orbit class
Near-Earth
Semi-major axis
1.229 AU
Eccentricity
0.355
Inclination
10.388 °
Absolute magnitude
18.460 H

via Minor Planet Center

Wikidata facts

Followed by
163819 Teleki
Parent body
Sun
Minor-planet group
Apollo asteroid
Diameter
0.386
Orbital period
497.8965855602361
Show 17 more facts
site of astronomical discovery
Anderson Mesa Station
time of discovery or invention
2003-09-06
provisional designation
2003 RX7
absolute magnitude
18.46
albedo
0.516
rotation period
5.649
orbital eccentricity
0.3545379783089573
semi-major axis of an orbit
1.229401713509048
periapsis
0.7935321154719822
apoapsis
1.665271311546114
orbital inclination
10.38881377771226
longitude of ascending node
241.0049539901487
argument of periapsis
245.9122997916144
mean anomaly
213.2735264621452
time of periapsis
2461003.4294727384
Sources (2)

via Wikidata · CC0

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via Wikidata sitelinks · CC0