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4073 Ruianzhongxue

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Also known as Ruianzhongxue

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
4074 Sharkov
Follows
4072 Yayoi
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
12.623
Orbital period
2068.078427000341
Show 17 more facts
discoverer or inventor
Purple Mountain Observatory
site of astronomical discovery
Purple Mountain Observatory
provisional designation
1986 PA1
time of discovery or invention
1981-10-23
orbital eccentricity
0.1744148078394314
orbital inclination
2.070360845638149
periapsis
2.622653682327041
apoapsis
3.730787990878162
semi-major axis of an orbit
3.176720836602601
mean anomaly
331.0673894352336
longitude of ascending node
144.1973875956232
argument of periapsis
189.9964260290947
absolute magnitude
12.31
albedo
0.122
rotation period
7.74
time of periapsis
2461166.7080770717
Sources (2)

via Wikidata · CC0