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(39796) 1997 TD

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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

Parent body
Sun
Minor-planet group
Amor asteroid
Diameter
2.131
Orbital period
1234.012354947558
Show 17 more facts
time of discovery or invention
1997-10-01
discoverer or inventor
Near-Earth Asteroid Tracking
site of astronomical discovery
Haleakalā Observatory
provisional designation
1997 TD
absolute magnitude
15.68
orbital eccentricity
0.4678343830846946
orbital inclination
12.91428048681416
periapsis
1.19819508047196
apoapsis
3.30489584606061
semi-major axis of an orbit
2.251545463266285
mean anomaly
68.5231943556387
longitude of ascending node
158.9175306322941
argument of periapsis
171.0484119690053
albedo
0.205
rotation period
223.5
time of periapsis
2460565.6153654573
Sources (3)

via Wikidata · CC0