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18946 Massar

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Also known as Massar

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
Diameter
8.684
Orbital period
1946.472889284987
Show 15 more facts
provisional designation
2000 QM75
time of discovery or invention
2000-08-24
orbital eccentricity
0.1747757667706873
absolute magnitude
14.34
orbital inclination
0.5163272892341662
periapsis
2.517707427012617
apoapsis
3.584167252939973
semi-major axis of an orbit
3.050937339976295
mean anomaly
236.5217309978074
longitude of ascending node
340.5265963027439
argument of periapsis
44.74721058074785
albedo
0.054
time of periapsis
2461668.130841746
Sources (2)

via Wikidata · CC0