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22815 Sewell

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Also known as Sewell

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
1.766
Orbital period
1308.532948685412
Show 15 more facts
time of discovery or invention
1999-09-07
provisional designation
1999 RN18
orbital eccentricity
0.1567384901389427
orbital inclination
6.22555422709921
periapsis
1.974330106720644
apoapsis
2.708274479479313
semi-major axis of an orbit
2.341302293099979
argument of periapsis
155.34897108214
absolute magnitude
15.32
mean anomaly
114.1357424957183
longitude of ascending node
194.4356088289178
albedo
0.566
time of periapsis
2460585.6378342267
Sources (2)

via Wikidata · CC0