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20580 Marilpeters

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Also known as Marilpeters

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

(20580) Marilpeters

Orbit class
Main-belt
Semi-major axis
2.374 AU
Eccentricity
0.195
Inclination
3.125 °
Absolute magnitude
14.660 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.658
Orbital period
1335.274642250967
Show 16 more facts
provisional designation
1999 RG151
time of discovery or invention
1999-09-09
orbital eccentricity
0.1953515140137966
absolute magnitude
14.66
orbital inclination
3.125137351637024
periapsis
1.909505798766072
apoapsis
2.836680472685665
semi-major axis of an orbit
2.373093135725868
mean anomaly
102.8606759662547
longitude of ascending node
68.67025412431458
argument of periapsis
209.5556756998164
albedo
0.252
rotation period
3.14
time of periapsis
2460618.979854715
Sources (2)

via Wikidata · CC0