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EntityQ972502· pop 14

21427 Ryanharrison

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Also known as Ryanharrison

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
21428 Junehokim
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1207.448873427724
Show 14 more facts
provisional designation
2001 AQ16
time of discovery or invention
1998-03-31
orbital eccentricity
0.1745841881174757
orbital inclination
4.130998851886872
periapsis
1.831694325205673
apoapsis
2.606539832262503
semi-major axis of an orbit
2.219117078734087
mean anomaly
293.7811609972097
longitude of ascending node
252.1446402193536
argument of periapsis
119.0211915053459
absolute magnitude
15.09
time of periapsis
2461222.5996182044
Sources (2)

via Wikidata · CC0