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(20253) 1998 EJ21

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Also known as 1998 EJ21

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

Orbital period
1253.830548095095
Show 13 more facts
provisional designation
1999 TJ274
time of discovery or invention
1998-03-01
orbital eccentricity
0.05020615417838771
albedo
0.239
absolute magnitude
15.38
orbital inclination
5.405507969170416
periapsis
2.161339370087216
apoapsis
2.389836402624946
semi-major axis of an orbit
2.275587886356081
mean anomaly
344.3429378257416
longitude of ascending node
174.1877051396511
argument of periapsis
31.40399010177468
time of periapsis
2461055.031396799
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