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19741 Callahan

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Also known as Callahan

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
3.876
Orbital period
1230.700608061207
Show 16 more facts
provisional designation
2000 AN141
time of discovery or invention
2000-01-05
orbital eccentricity
0.1301002555560648
absolute magnitude
14.6
orbital inclination
8.048994381882574
periapsis
1.955112994039922
apoapsis
2.539917626505177
semi-major axis of an orbit
2.247515310272549
mean anomaly
321.1631955272971
longitude of ascending node
167.3162691556493
argument of periapsis
227.4242994333937
albedo
0.224
rotation period
7.268
time of periapsis
2461133.267996888
Sources (2)

via Wikidata · CC0