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21506 Betsill

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Also known as Betsill, (21506) Betsill

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
21507 Bhasin
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1280.299126811092
Show 15 more facts
provisional designation
1999 RL207
time of discovery or invention
1998-05-22
orbital eccentricity
0.08254943062407256
orbital inclination
7.189720808492195
periapsis
2.117018676812756
apoapsis
2.497984566910346
semi-major axis of an orbit
2.307501621861551
mean anomaly
353.7464490802508
longitude of ascending node
282.3554859303263
argument of periapsis
259.6631315626572
absolute magnitude
14.48
rotation period
5.27084
time of periapsis
2461022.740043839
Sources (2)

via Wikidata · CC0