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EntityQ546944· pop 23· linked from 6 articles

Also known as Grotius

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

Diameter
3.746
Orbital period
1519.45520705089
Image
AnimatedOrbitOf9994Grotius.gif
Show 14 more facts
provisional designation
4028 P-L
time of discovery or invention
1960-09-24
orbital inclination
7.183032439879875
orbital eccentricity
0.1746762675138772
absolute magnitude
14.5
periapsis
2.134767833096546
apoapsis
3.03839694835469
semi-major axis of an orbit
2.586582390725618
mean anomaly
195.7984791730084
longitude of ascending node
207.1022972805534
argument of periapsis
223.8205968982615
albedo
0.263
rotation period
9.219
time of periapsis
2461693.5468217395
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via Wikidata · CC0

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