Skip to content
EntityQ4542258· pop 6

(21347) 1997 EO11

Sign in to save

minor planet

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
21348 Toyoteru
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.823
Orbital period
1613.824985847047
Show 16 more facts
site of astronomical discovery
Xinglong Station
provisional designation
2000 WS48
time of discovery or invention
1997-03-03
orbital eccentricity
0.1616398261842468
albedo
0.400
absolute magnitude
13.98
orbital inclination
14.1978912385151
periapsis
2.257369456585116
apoapsis
3.127832577311163
semi-major axis of an orbit
2.692601016948139
mean anomaly
259.6128762224214
longitude of ascending node
111.7212825199495
argument of periapsis
314.6666942315994
time of periapsis
2461450.5201350264
Sources (3)

via Wikidata · CC0

Available in 6 languages

via Wikidata sitelinks · CC0