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12125 Jamesjones

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Also known as Jamesjones

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

12125 Jamesjones (1999 RS4)

Orbit class
Main-belt Asteroid
Diameter
11.435 km
Albedo
0.049
Rotation period
0.920 h
Absolute magnitude
13.710 H
Earth MOID
1.480 AU

via NASA/JPL Small-Body Database

Wikidata facts

Instance of
asteroid
Follows
12124 Hvar
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
11.435
Orbital period
1992.807734924821
Show 17 more facts
discoverer or inventor
Spacewatch
site of astronomical discovery
Kitt Peak National Observatory
provisional designation
1999 RS4
time of discovery or invention
1999-09-03
orbital eccentricity
0.1953274962644493
orbital inclination
0.2153011249810876
periapsis
2.493812573713498
apoapsis
3.704516714627812
semi-major axis of an orbit
3.099164644170655
mean anomaly
315.6873560904136
longitude of ascending node
72.13568924345918
argument of periapsis
232.8079878099785
absolute magnitude
13.71
albedo
0.049
rotation period
0.92
time of periapsis
2461245.796054272
Sources (2)

via Wikidata · CC0