Skip to content
EntityQ152603· pop 27

Also known as Balder

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
Named after
Baldur
Followed by
Q152604
Follows
Q152601
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
17.019
Orbital period
1919.7579977635
Show 17 more facts
discoverer or inventor
Poul Jensen
site of astronomical discovery
Brorfelde Observatory
provisional designation
1987 SB5
time of discovery or invention
1987-09-29
orbital eccentricity
0.06575935001103499
absolute magnitude
11.57
orbital inclination
9.454035469140424
periapsis
2.824169764585838
apoapsis
3.221745203081638
semi-major axis of an orbit
3.022957483833738
mean anomaly
183.177781195147
longitude of ascending node
238.0186837447843
argument of periapsis
32.08893816053044
albedo
0.097
rotation period
9.7215
time of periapsis
2461943.4329687026
Sources (2)

via Wikidata · CC0