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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
Diameter
2.752
Orbital period
1321.655364689885
Show 17 more facts
discoverer or inventor
Andrew J. Noymer
site of astronomical discovery
Siding Spring Observatory
provisional designation
1998 HT40
time of discovery or invention
1988-08-11
orbital eccentricity
0.04117833212339738
orbital inclination
6.839094868598534
periapsis
2.259874755027937
apoapsis
2.453983579093015
semi-major axis of an orbit
2.356929167060476
mean anomaly
152.4067364055591
longitude of ascending node
170.4780986134688
argument of periapsis
109.5746837139274
absolute magnitude
14.72
albedo
0.405
rotation period
14.1392
time of periapsis
2460440.974497819
Sources (2)

via Wikidata · CC0