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32720 Simoeisios

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Also known as Simoeisios

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
21.13
Orbital period
4322.320597378085
Show 17 more facts
discoverer or inventor
Tom Gehrels
time of discovery or invention
1977-10-16
site of astronomical discovery
Palomar Observatory
provisional designation
2131 T-3
orbital eccentricity
0.01477030129614379
orbital inclination
7.506068292718283
periapsis
5.116227657509755
apoapsis
5.269629902895777
semi-major axis of an orbit
5.192928780202766
mean anomaly
126.1998388205553
longitude of ascending node
247.9887222407571
argument of periapsis
25.86515625086226
absolute magnitude
12.09
albedo
0.099
rotation period
8.951
time of periapsis
2459485.288436889
Sources (3)

via Wikidata · CC0