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(25886) 2000 SY181

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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

(25886) 2000 SY181

Orbit class
Main-belt
Semi-major axis
2.463 AU
Eccentricity
0.256
Inclination
11.513 °
Absolute magnitude
14.210 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.092
Orbital period
1410.895256588959
Show 16 more facts
time of discovery or invention
2000-09-19
discoverer or inventor
Near-Earth Asteroid Tracking
provisional designation
2000 SY181
orbital eccentricity
0.2564030301116302
albedo
0.097
orbital inclination
11.51292600461725
periapsis
1.830635341349692
apoapsis
3.093094623888091
semi-major axis of an orbit
2.461864982618891
mean anomaly
91.16970181476506
longitude of ascending node
108.1568777130411
argument of periapsis
317.3320344064704
absolute magnitude
14.23
site of astronomical discovery
Haleakalā Observatory
time of periapsis
2460443.1919449028
Sources (4)

via Wikidata · CC0

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via Wikidata sitelinks · CC0