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(39760) 1997 EM54

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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
1250.073290442262
Show 16 more facts
time of discovery or invention
1997-03-08
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
La Silla Observatory
provisional designation
1998 UP17
albedo
0.245
orbital eccentricity
0.1174284562289024
orbital inclination
4.338723630150749
periapsis
2.004354890397411
apoapsis
2.537724229518691
semi-major axis of an orbit
2.271039559958051
mean anomaly
58.76295658388444
longitude of ascending node
6.356031694892494
argument of periapsis
269.9767068875594
absolute magnitude
16.12
time of periapsis
2460796.4499930753
Sources (3)

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