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(16392) 1981 EP42

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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
(16393) 1981 QS
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.036
Orbital period
1582.033947161934
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EP42
time of discovery or invention
1981-03-02
orbital eccentricity
0.1014234454177621
albedo
0.192
orbital inclination
3.319264820746582
periapsis
2.38762800331175
apoapsis
2.926617046008049
semi-major axis of an orbit
2.6571225246599
mean anomaly
207.7119165510421
longitude of ascending node
190.6646244843816
argument of periapsis
205.2524096478801
absolute magnitude
14.68
time of periapsis
2461469.735882679
Sources (3)

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