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6911 Nancygreen

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Also known as Nancygreen

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
Q673623
Parent body
Sun
Diameter
2.548
Orbital period
980.6571150253902
Show 17 more facts
discoverer or inventor
Eleanor F. Helin
site of astronomical discovery
Palomar Observatory
provisional designation
1991 GN
time of discovery or invention
1991-04-10
orbital eccentricity
0.08998055914773563
absolute magnitude
14.3
orbital inclination
22.9000754298322
periapsis
1.757909479831753
apoapsis
2.105545301278001
semi-major axis of an orbit
1.931727390554877
mean anomaly
144.4330457112405
longitude of ascending node
207.7923439707785
argument of periapsis
168.6416302118175
albedo
0.392
rotation period
54.7
time of periapsis
2460607.0575168845
Sources (2)

via Wikidata · CC0