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EntityQ157743· pop 24· linked from 37 articles

Also known as Hal

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
HAL 9000
Followed by
9001 Slettebak
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.615
Orbital period
1216.209749560956
Show 17 more facts
discoverer or inventor
Edward L. G. Bowell
site of astronomical discovery
Anderson Mesa Station
provisional designation
1995 US3
time of discovery or invention
1981-05-03
orbital eccentricity
0.208602368211673
absolute magnitude
14.16
orbital inclination
6.26358997049365
apoapsis
2.694987840362264
semi-major axis of an orbit
2.229838291935455
mean anomaly
77.17615399137907
longitude of ascending node
226.5562891106838
argument of periapsis
79.85307779939228
albedo
0.324
rotation period
908.0
periapsis
1.764688743508647
time of periapsis
2460739.7711363393
Sources (2)

via Wikidata · CC0