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73891 Pietromennea

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Also known as (73891) 1997 ED23, Pietromennea

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
1467.303477690764
Show 15 more facts
time of discovery or invention
1997-03-10
discoverer or inventor
Vincenzo Silvano Casulli
site of astronomical discovery
Kolleverde di Gvidoniya observatory
provisional designation
1997 ED23
orbital eccentricity
0.1971287737047068
absolute magnitude
15.71
mean anomaly
16.20269895184029
argument of periapsis
227.194501963694
longitude of ascending node
357.1175587154178
orbital inclination
2.720579670835261
semi-major axis of an orbit
2.527052977741939
periapsis
2.028898123152843
apoapsis
3.025207832331035
time of periapsis
2460934.460343
Sources (2)

via Wikidata · CC0