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21744 Meliselinger

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Also known as Meliselinger, (21744) Meliselinger

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

Diameter
2.761
Orbital period
1373.996114536458
Show 13 more facts
provisional designation
1999 RF168
time of discovery or invention
1999-09-09
orbital eccentricity
0.1803443945932746
orbital inclination
2.339619870226155
periapsis
1.98254383431069
apoapsis
2.854960652288708
semi-major axis of an orbit
2.418752243299699
mean anomaly
57.4159491193789
longitude of ascending node
141.5753135310098
argument of periapsis
113.4846239846225
absolute magnitude
15.15
albedo
0.279
time of periapsis
2460781.3630805486
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via Wikidata · CC0

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