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(17378) 1981 EM5

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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
Followed by
(17379) 1981 ED8
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.867
Orbital period
1986.467229589106
Show 17 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EM5
time of discovery or invention
1981-03-02
orbital eccentricity
0.04434117011323804
albedo
0.113
absolute magnitude
14.18
orbital inclination
8.147611576591034
periapsis
2.955458478279922
apoapsis
3.22971636833374
semi-major axis of an orbit
3.092587423306831
mean anomaly
119.6300811369156
longitude of ascending node
271.5466291749645
argument of periapsis
188.9368776996499
rotation period
18.4114
time of periapsis
2460140.385455968
Sources (3)

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