Skip to content
EntityQ3598456· pop 8

27253 Graceleanor

Sign in to save

Also known as (27253) 1999 XC28

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
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.34
Orbital period
1348.389962373924
Show 15 more facts
time of discovery or invention
1999-12-06
provisional designation
1999 XC28
orbital eccentricity
0.1370118590866849
orbital inclination
1.795799297951261
periapsis
2.06133961865523
apoapsis
2.715874623185172
semi-major axis of an orbit
2.388607120920201
mean anomaly
299.5100660132118
longitude of ascending node
223.0066552475578
argument of periapsis
278.7572373196311
absolute magnitude
15.87
albedo
0.054
time of periapsis
2461227.066721701
Sources (2)

via Wikidata · CC0

Available in 8 languages

via Wikidata sitelinks · CC0