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(20588) 1999 RM166

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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
1797.931967615852
Show 15 more facts
provisional designation
1999 RM166
time of discovery or invention
1999-09-09
orbital eccentricity
0.235616217740936
albedo
0.325
periapsis
2.211878917339079
apoapsis
3.575472851956915
semi-major axis of an orbit
2.893675884647997
mean anomaly
56.38434224259487
longitude of ascending node
32.22078645297253
argument of periapsis
35.33603021815684
absolute magnitude
13.65
orbital inclination
3.980996232394415
time of periapsis
2460718.9021905805
Sources (3)

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