Skip to content
EntityQ710773· pop 15

(5499) 1981 SU2

Sign in to save

main-belt 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
5500 Twilley
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.805
Orbital period
1248.497836954707
Show 17 more facts
site of astronomical discovery
Haute-Provence Observatory
provisional designation
1986 AX1
time of discovery or invention
1981-09-29
discoverer or inventor
Haute-Provence Observatory
orbital eccentricity
0.1339839802478215
orbital inclination
2.121018743505377
periapsis
1.96510383875459
apoapsis
2.573158257867894
semi-major axis of an orbit
2.269131048311242
mean anomaly
298.5163714550656
longitude of ascending node
312.7682073801161
argument of periapsis
84.77968202660124
absolute magnitude
13.88
albedo
0.255
rotation period
3.6925
time of periapsis
2461213.7282701293
Sources (3)

via Wikidata · CC0