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EntityQ710505· pop 17

5257 Laogonus

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Also known as (5257) 1988 RS10, 1988 RS10, (5257) Laogonus

Jupiter trojan

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

(5257) Laogonus

Orbit class
Jupiter Trojan
Semi-major axis
5.152 AU
Eccentricity
0.032
Inclination
2.871 °
Absolute magnitude
12.010 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
5258 Rhoeo
Parent body
Sun
Orbital period
4272.821996316577
Show 15 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Cerro Tololo Inter-American Observatory
provisional designation
1988 RS10
time of discovery or invention
1988-09-14
apoapsis
5.317974517230102
semi-major axis of an orbit
5.153206934675575
mean anomaly
177.2423689665857
longitude of ascending node
127.0045905957241
argument of periapsis
87.814857691654
absolute magnitude
12.01
orbital eccentricity
0.03197379508395374
orbital inclination
2.871237094226061
periapsis
4.988439352121049
time of periapsis
2458896.8191866674
Sources (4)

via Wikidata · CC0