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(20188) 1997 AC18

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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
(20189) 1997 BS2
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.83
Orbital period
1526.249128002013
Show 16 more facts
discoverer or inventor
Takao Kobayashi
site of astronomical discovery
Ōizumi Observatory
provisional designation
1997 AC18
time of discovery or invention
1997-01-15
albedo
0.229
orbital eccentricity
0.09475208773433014
absolute magnitude
14.08
argument of periapsis
106.70974489771
orbital inclination
8.627754070203196
periapsis
2.348472792682599
apoapsis
2.840100991055386
semi-major axis of an orbit
2.594286891868993
mean anomaly
215.3571543815435
longitude of ascending node
101.6077207828764
time of periapsis
2461413.7250472135
Sources (3)

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