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154378 Hennessy

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EntityQ3597544· pop 6

154378 Hennessy

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Also known as Hennessy

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
1389.092603218724
Show 15 more facts
discoverer or inventor
Sloan Digital Sky Survey
time of discovery or invention
2002-12-14
provisional designation
2002 XR115
site of astronomical discovery
Apache Point Observatory
orbital eccentricity
0.1815626380316513
absolute magnitude
16.55
mean anomaly
216.7104573586538
argument of periapsis
300.2607626148888
orbital inclination
0.8701969858294882
longitude of ascending node
357.0823701089549
semi-major axis of an orbit
2.436436972654795
periapsis
1.99407104850174
apoapsis
2.878802896807849
time of periapsis
2461553.395677227
Sources (3)

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