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15523 Grenville

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Also known as Grenville

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
4.883
Orbital period
1688.054851655415
Show 17 more facts
site of astronomical discovery
Anderson Mesa Station
provisional designation
1998 KR60
time of discovery or invention
1999-12-09
orbital eccentricity
0.1624657313249162
orbital inclination
10.24532026615745
periapsis
2.3237781874328
apoapsis
3.225315800348362
semi-major axis of an orbit
2.774546993890581
mean anomaly
270.3795043983749
longitude of ascending node
103.3316137490491
argument of periapsis
228.0847337392338
absolute magnitude
13.48
albedo
0.355
rotation period
5.745
time of periapsis
2461420.7342011337
Sources (2)

via Wikidata · CC0