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8663 Davidjohnston

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Also known as (8663) 1991 DJ1, Davidjohnston

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
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.599
Orbital period
1231.378418413688
Show 17 more facts
discoverer or inventor
Eleanor F. Helin
site of astronomical discovery
Palomar Observatory
provisional designation
1993 VO2
time of discovery or invention
1991-02-18
orbital eccentricity
0.1116800525702653
absolute magnitude
14.02
orbital inclination
5.811944454808159
periapsis
1.99724567005826
apoapsis
2.499435229289079
semi-major axis of an orbit
2.24834044967367
mean anomaly
117.9927824401676
longitude of ascending node
98.71845185734144
argument of periapsis
41.95103753910317
albedo
0.277
rotation period
35.28
time of periapsis
2460596.9062060406
Sources (2)

via Wikidata · CC0