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(39693) 1996 ST1

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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

Wikidata facts

Instance of
asteroid
Parent body
Sun
Diameter
14.899
Orbital period
4352.347756941069
Show 16 more facts
time of discovery or invention
1996-09-17
discoverer or inventor
Spacewatch
site of astronomical discovery
Kitt Peak National Observatory
provisional designation
1996 ST1
absolute magnitude
12.51
orbital eccentricity
0.00895777438135182
orbital inclination
6.520064364732276
periapsis
5.170218930753429
apoapsis
5.263683474415982
semi-major axis of an orbit
5.216951202584705
mean anomaly
174.2299609535967
longitude of ascending node
203.8887411272843
argument of periapsis
141.8954242031261
albedo
0.105
time of periapsis
2458694.0850562546
Sources (4)

via Wikidata · CC0