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52231 Sitnik

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Also known as Sitnik

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
2.621
Orbital period
1222.313532967602
Show 17 more facts
discoverer or inventor
Nikolai Chernykh
time of discovery or invention
1978-09-05
site of astronomical discovery
Crimean Astrophysical Observatory
provisional designation
1988 PJ2
orbital eccentricity
0.2062845100645473
absolute magnitude
14.52
mean anomaly
35.49001120847333
argument of periapsis
221.1700051048239
longitude of ascending node
137.5913539344104
orbital inclination
3.969525347991689
Commons category
52231 Sitnik
albedo
0.356
semi-major axis of an orbit
2.237292648030911
periapsis
1.775773830260841
apoapsis
2.698811465800981
time of periapsis
2460880.0002194853
Sources (2)

via Wikidata · CC0

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via Wikidata sitelinks · CC0