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9881 Sampson

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Also known as (9881) 1994 SE, 1994 SE

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

9881 Sampson (1994 SE)

Orbit class
Mars-crossing Asteroid
Absolute magnitude
15.930 H
Earth MOID
0.403 AU

via NASA/JPL Small-Body Database

Wikidata facts

Instance of
asteroid
Followed by
9882 Stallman
Parent body
Sun
Minor-planet group
Mars-crossing asteroid
Orbital period
1307.355234028104
Show 16 more facts
provisional designation
1994 SE
discoverer or inventor
Robert H. McNaught
site of astronomical discovery
Siding Spring Observatory
time of discovery or invention
1994-09-25
orbital eccentricity
0.4112389243273806
albedo
0.179
absolute magnitude
15.91
orbital inclination
8.083014319140549
periapsis
1.37764042726442
apoapsis
3.302154091048667
semi-major axis of an orbit
2.339897259156543
mean anomaly
252.8418081218607
longitude of ascending node
61.02883793467851
argument of periapsis
275.0126502791908
time of periapsis
2461389.6495083915
Sources (4)

via Wikidata · CC0