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6515 Giannigalli

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Also known as Giannigalli

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
6516 Gruss
Follows
Q18690
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1259.398458144934
Show 15 more facts
discoverer or inventor
Eleanor F. Helin
site of astronomical discovery
Palomar Observatory
provisional designation
1988 MG
time of discovery or invention
1988-06-16
orbital eccentricity
0.1519461268133508
absolute magnitude
14.25
orbital inclination
2.625052816943464
periapsis
1.935530097155211
apoapsis
2.629109387084767
semi-major axis of an orbit
2.282319742119989
mean anomaly
276.2666922701859
longitude of ascending node
270.7735608593555
argument of periapsis
36.2236324246127
time of periapsis
2461293.4266629177
Sources (2)

via Wikidata · CC0