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5773 Hopper

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Also known as (5773) 1989 NO, Hopper

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
Grace Hopper
Followed by
5774 Ratliff
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.583
Orbital period
1234.707375756399
Show 17 more facts
discoverer or inventor
Eleanor F. Helin
site of astronomical discovery
Palomar Observatory
provisional designation
1985 FJ
time of discovery or invention
1989-07-02
mean anomaly
297.3492385090138
longitude of ascending node
355.5473685391186
argument of periapsis
264.9673494246029
absolute magnitude
13.75
orbital eccentricity
0.1530153359331965
orbital inclination
4.75675353523864
periapsis
1.907740460569336
apoapsis
2.597041128767371
semi-major axis of an orbit
2.252390794668353
albedo
0.335
rotation period
108.986
time of periapsis
2461215.3759925268
Sources (2)

via Wikidata · CC0