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5440 Terao

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Also known as Terao

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
Named after
Terao Hisashi
Followed by
5441 Andymurray
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.524
Orbital period
1169.205122531788
Show 17 more facts
discoverer or inventor
Atsushi Sugie
site of astronomical discovery
Dainik Astronomical Observatory
provisional designation
1991 HD
time of discovery or invention
1991-04-16
orbital eccentricity
0.1415584317632425
orbital inclination
4.564409699624851
periapsis
1.864542388122875
apoapsis
2.479474623897298
semi-major axis of an orbit
2.172008506010086
mean anomaly
251.2102346815278
longitude of ascending node
115.5024245730385
argument of periapsis
149.3088600637065
absolute magnitude
13.6
albedo
0.208
rotation period
50.32
time of periapsis
2461353.8265302484
Sources (2)

via Wikidata · CC0