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17929 Sully

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EntityQ1481924· pop 10

17929 Sully

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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
17930 Kennethott
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.433
Orbital period
1486.8863956346
Show 16 more facts
provisional designation
1999 GQ21
time of discovery or invention
1999-04-15
orbital eccentricity
0.1694300584140948
albedo
0.217
orbital inclination
15.42803043712341
periapsis
2.117527783144477
apoapsis
2.98144745571676
semi-major axis of an orbit
2.549487619430618
mean anomaly
103.0590086805418
longitude of ascending node
55.11509679965494
argument of periapsis
262.7536066207182
absolute magnitude
13.49
rotation period
4.443
time of periapsis
2460574.841561237
Sources (3)

via Wikidata · CC0

Gallery (2)