Skip to content
8021 Walter

Image by LaCasadeGoethe on Pixabay · Pixabay License

EntityQ1191241· pop 20

8021 Walter

Sign in to save

Also known as Walter

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
Q1483511
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.286
Orbital period
1331.273873200107
Show 17 more facts
discoverer or inventor
David H. Levy
site of astronomical discovery
Palomar Observatory
provisional designation
1990 UO2
time of discovery or invention
1990-10-22
orbital eccentricity
0.2241165861916165
absolute magnitude
13.52
orbital inclination
23.8087067472715
periapsis
1.837563924038903
apoapsis
2.899137212590158
semi-major axis of an orbit
2.368350568314531
mean anomaly
219.0942387682047
longitude of ascending node
236.9004998694358
argument of periapsis
162.5808787471102
albedo
0.257
rotation period
4.84
time of periapsis
2461521.5671069757
Sources (2)

via Wikidata · CC0

Gallery (2)