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16405 Testudo

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16405 Testudo

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main-belt minor planet

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
16406 Oszkiewicz
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.199
Orbital period
1286.119625205203
Show 16 more facts
discoverer or inventor
Henri Debehogne
site of astronomical discovery
La Silla Observatory
provisional designation
1999 DW
time of discovery or invention
1985-02-20
orbital eccentricity
0.2373301418771121
albedo
0.306
absolute magnitude
13.93
mean anomaly
140.1964571302857
longitude of ascending node
302.5719365281524
argument of periapsis
298.5165981682835
orbital inclination
6.592781677903986
periapsis
1.765191693137603
apoapsis
2.863788131716523
semi-major axis of an orbit
2.314489912427063
time of periapsis
2460499.640514168
Sources (3)

via Wikidata · CC0

Gallery (2)