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(4688) 1980 WF

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Amor minor planet and Near-Earth object

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

Followed by
4689 Donn
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
0.6
Orbital period
1218.851886505308
Show 17 more facts
site of astronomical discovery
Palomar Observatory
provisional designation
1980 WF
discoverer or inventor
Charles T. Kowal
time of discovery or invention
1980-11-29
orbital eccentricity
0.5178619503805612
orbital inclination
6.374948689362922
periapsis
1.076646363938396
apoapsis
3.389486789369933
semi-major axis of an orbit
2.233066576654164
mean anomaly
163.4596585558834
longitude of ascending node
241.2261303602751
argument of periapsis
213.8320283873336
absolute magnitude
19.6
albedo
0.18
asteroid spectral type
V-type asteroid
time of periapsis
2460447.07468556
Sources (2)

via Wikidata · CC0