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3900 Knežević

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Also known as 3900 Knezevic, Knežević

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
Zoran Knežević
Followed by
Q152343
Follows
Q152329
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.959
Orbital period
1333.445076136265
Show 19 more facts
discoverer or inventor
Edward L. G. Bowell
site of astronomical discovery
Anderson Mesa Station
provisional designation
1985 RK
time of discovery or invention
1985-09-14
orbital eccentricity
0.1375543861462678
orbital inclination
6.713876089552271
periapsis
2.044793807646685
apoapsis
2.697056054653097
semi-major axis of an orbit
2.370924931149891
mean anomaly
331.8964558203011
longitude of ascending node
338.1437151782334
argument of periapsis
55.5337373742933
absolute magnitude
13.38
Commons category
3900 Knežević
albedo
0.413
rotation period
5.26
asteroid spectral type
V-type asteroid
time of periapsis
2461104.5959239122
Sources (2)

via Wikidata · CC0