Skip to content
18824 Graves

Image by astaroth343 on Pixabay · Pixabay License

EntityQ2617297· pop 15

18824 Graves

Sign in to save

Also known as Graves

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
18825 Alicechai
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
2.475
Orbital period
1344.870025566351
Show 15 more facts
provisional designation
1999 NF23
time of discovery or invention
1999-07-14
orbital eccentricity
0.1638783924963646
orbital inclination
1.904945614498263
periapsis
1.993688811817658
apoapsis
2.775207946562048
semi-major axis of an orbit
2.384448379189853
mean anomaly
118.50661274074
longitude of ascending node
221.4247291550502
argument of periapsis
352.321814842665
absolute magnitude
14.91
albedo
0.263
time of periapsis
2460557.7889130376
Sources (2)

via Wikidata · CC0

Gallery (2)