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4550 Royclarke

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Also known as Royclarke, (4550) Royclarke

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
Followed by
4551 Cochran
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
13.239
Orbital period
2000.305234090207
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Palomar Observatory
provisional designation
1998 EF22
time of discovery or invention
1977-04-24
orbital eccentricity
0.2219673477399685
orbital inclination
0.2453580682789954
periapsis
2.417295369032296
absolute magnitude
12.9
apoapsis
3.796570750880613
semi-major axis of an orbit
3.106933059956455
mean anomaly
205.1405486693567
longitude of ascending node
16.77453545853001
argument of periapsis
311.8196295410486
albedo
0.076
time of periapsis
2461860.961586236
Sources (2)

via Wikidata · CC0