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20437 Selohusa

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Also known as (20437) 1999 JH1, Selohusa

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
2.694
Orbital period
1311.554425969676
Show 16 more facts
discoverer or inventor
Catalina Sky Survey
provisional designation
1999 JH1
time of discovery or invention
1999-05-08
site of astronomical discovery
Catalina Station
albedo
0.222
orbital eccentricity
0.129352055495469
orbital inclination
6.110476538589369
periapsis
2.041586754241294
apoapsis
2.649
semi-major axis of an orbit
2.344905041271443
mean anomaly
347.2697100590258
longitude of ascending node
193.0778335662029
argument of periapsis
174.8977525673159
absolute magnitude
15.2
time of periapsis
2461046.8790781
Sources (4)

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