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21588 Gianelli

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EntityQ253012· pop 15

21588 Gianelli

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Also known as Gianelli

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
1982.2394451734
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provisional designation
1998 SK157
time of discovery or invention
1998-09-26
orbital eccentricity
0.1592630446342314
orbital inclination
2.574904909653788
periapsis
2.596362108806906
apoapsis
3.580033712112706
semi-major axis of an orbit
3.088197910459806
mean anomaly
98.0868543063162
longitude of ascending node
131.127271735909
argument of periapsis
130.0849397023167
absolute magnitude
14.2
time of periapsis
2460460.412134281
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