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13911 Stempels

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Also known as (13911) 1979 QT1, Stempels

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
13912 Gammelgarn
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.169
Orbital period
1319.392604784063
Show 17 more facts
discoverer or inventor
Claes-Ingvar Lagerkvist
site of astronomical discovery
La Silla Observatory
orbital eccentricity
0.1726329219030761
albedo
0.279
orbital inclination
1.337635612875714
periapsis
1.947819226089147
apoapsis
2.760657283683133
semi-major axis of an orbit
2.35423825488614
mean anomaly
359.0425250983929
longitude of ascending node
169.1370333691347
argument of periapsis
69.88441765731355
absolute magnitude
14.79
time of discovery or invention
1979-08-22
provisional designation
1994 TP11
rotation period
1.15
time of periapsis
2461004.0091258455
Sources (3)

via Wikidata · CC0

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