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8630 Billprady

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Also known as (8630) 1981 EY35

main-belt minor planet

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
Bill Prady
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.563
Orbital period
1259.63581871134
Show 17 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EY35
time of discovery or invention
1981-03-02
orbital eccentricity
0.1406970367238409
absolute magnitude
14.2
orbital inclination
3.877727734011274
periapsis
1.961450530372896
apoapsis
2.603762471790425
semi-major axis of an orbit
2.28260650108166
mean anomaly
299.7753543308884
longitude of ascending node
1.791826948584487
argument of periapsis
233.274856748875
albedo
0.379
rotation period
79.652
time of periapsis
2461211.2253357056
Sources (2)

via Wikidata · CC0