Skip to content
EntityQ6680427· pop 8

29897 Kossen

Sign in to save

Also known as (29897) 1999 GM61, 1999 GM61, Kossen

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
Diameter
11.602
Orbital period
2116.862371107987
Show 16 more facts
time of discovery or invention
1999-04-07
site of astronomical discovery
Anderson Mesa Station
provisional designation
2001 QM25
albedo
0.048
orbital eccentricity
0.03594360225936295
absolute magnitude
13.92
orbital inclination
4.156643929662218
periapsis
3.110512172300772
apoapsis
3.34245505988724
semi-major axis of an orbit
3.226483616094006
mean anomaly
139.8895486654355
longitude of ascending node
42.9061985856091
argument of periapsis
231.2586347384414
time of periapsis
2460177.9252175526
Sources (4)

via Wikidata · CC0

Available in 8 languages

via Wikidata sitelinks · CC0