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21001 Trogrlic

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Also known as Trogrlic

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
Mars-crossing asteroid
Orbital period
1297.378299016171
Show 16 more facts
discoverer or inventor
Alain Maury
site of astronomical discovery
Palomar Observatory
provisional designation
2000 WJ1
time of discovery or invention
1987-04-01
orbital eccentricity
0.320206652995672
absolute magnitude
15.28
orbital inclination
21.56759425748943
periapsis
1.582543700632681
apoapsis
3.073411546962896
semi-major axis of an orbit
2.327977623797789
mean anomaly
351.2825618808924
longitude of ascending node
177.468715888165
argument of periapsis
293.6032154512147
rotation period
6.18659
time of periapsis
2461031.916152885
Sources (2)

via Wikidata · CC0