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15808 Zelter

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Also known as Zelter

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
(15809) 1994 JS
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.497
Orbital period
1790.721559810046
Show 16 more facts
discoverer or inventor
Freimut Börngen
site of astronomical discovery
Karl Schwarzschild Observatory
provisional designation
1999 EU4
time of discovery or invention
1994-04-03
orbital eccentricity
0.08535285484891945
orbital inclination
1.321545759052521
periapsis
2.639611470176348
apoapsis
3.132256914631958
semi-major axis of an orbit
2.885934192404153
mean anomaly
124.4854059702018
longitude of ascending node
107.3017977532088
argument of periapsis
116.3513751185335
absolute magnitude
13.55
albedo
0.28
time of periapsis
2460381.28138791
Sources (2)

via Wikidata · CC0