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21537 Fréchet

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Also known as Fréchet

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
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1968.303245404777
Show 16 more facts
discoverer or inventor
Paul G. Comba
site of astronomical discovery
Prescott Observatory
provisional designation
1998 PQ
time of discovery or invention
1998-08-15
orbital eccentricity
0.1393999585115779
absolute magnitude
14.33
orbital inclination
1.17483620521203
periapsis
2.645231894303278
apoapsis
3.502180996191835
semi-major axis of an orbit
3.073706445247556
mean anomaly
102.7103636776309
longitude of ascending node
160.8055255122778
argument of periapsis
77.98072997158158
rotation period
5.02
time of periapsis
2460438.930160657
Sources (2)

via Wikidata · CC0