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EntityQ508537· pop 33

2161 Grissom

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Also known as (2161) 1963 UD, Grissom

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
Named after
Gus Grissom
Followed by
2162 Anhui
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
15.857
Orbital period
1663.978522103236
Show 18 more facts
discoverer or inventor
Indiana Asteroid Program
site of astronomical discovery
Goethe Link Observatory
provisional designation
1976 OK
time of discovery or invention
1963-10-17
orbital eccentricity
0.1622261237138441
orbital inclination
7.301599272258546
periapsis
2.302288125599859
apoapsis
3.193916019141158
semi-major axis of an orbit
2.748102072370509
mean anomaly
242.9047614109479
longitude of ascending node
126.3548790952009
argument of periapsis
248.9107007687707
absolute magnitude
12.3
albedo
0.074
rotation period
5.0633
asteroid spectral type
C-type asteroid
time of periapsis
2461541.7332279244
Sources (2)

via Wikidata · CC0