Skip to content
EntityQ2625537· pop 17

11981 Boncompagni

Sign in to save

Also known as Boncompagni

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
(11982) 1995 UF6
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.755
Orbital period
1578.941036565993
Show 17 more facts
discoverer or inventor
San Vittore Observatory
site of astronomical discovery
San Vittore Observatory
provisional designation
1997 EZ20
time of discovery or invention
1995-10-20
orbital eccentricity
0.06519658244992318
mean anomaly
261.2350553819962
longitude of ascending node
321.6234072356725
argument of periapsis
159.8435318196261
absolute magnitude
14.54
orbital inclination
4.69091687190882
periapsis
2.480648792295415
apoapsis
2.826667688845987
semi-major axis of an orbit
2.653658240570701
albedo
0.179
rotation period
152.278
time of periapsis
2461433.677844532
Sources (2)

via Wikidata · CC0