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21458 Susank

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Also known as Susank

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
Diameter
3.238
Orbital period
1298.563635016179
Show 17 more facts
site of astronomical discovery
Anderson Mesa Station
provisional designation
1999 RK36
time of discovery or invention
1998-04-25
orbital eccentricity
0.06707785522773796
orbital inclination
4.638300712083621
periapsis
2.173144517859239
apoapsis
2.485646207683525
semi-major axis of an orbit
2.329395362771382
mean anomaly
24.44035291511033
longitude of ascending node
173.6513125074466
argument of periapsis
285.5247360764787
absolute magnitude
14.94
albedo
0.222
rotation period
7.28757
time of periapsis
2460912.34068466
Sources (2)

via Wikidata · CC0