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21650 Tilgner

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Also known as Tilgner

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
1274.648856155776
Show 15 more facts
discoverer or inventor
Stefano Sposetti
site of astronomical discovery
Osservatorio Astronomico di Gnosca
provisional designation
1999 OB1
time of discovery or invention
1999-07-17
orbital eccentricity
0.1228954878350727
orbital inclination
6.076423966475729
periapsis
2.017960995594612
apoapsis
2.583454155294869
semi-major axis of an orbit
2.30070757544474
mean anomaly
225.2316119869385
longitude of ascending node
232.684219124331
argument of periapsis
50.70295410170137
absolute magnitude
15.16
time of periapsis
2461477.673254519
Sources (2)

via Wikidata · CC0