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EntityQ918690· pop 28· linked from 8 articles

Also known as Doppler

main belt 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
Followed by
3906 Chao
Follows
Q748259
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
8.021
Orbital period
1496.331716947184
Show 18 more facts
discoverer or inventor
Antonín Mrkos
site of astronomical discovery
Kleť Observatory
provisional designation
1984 QO
time of discovery or invention
1984-08-28
orbital eccentricity
0.255002729780206
absolute magnitude
12.91
orbital inclination
14.20945691951841
periapsis
1.907396513885195
apoapsis
3.213149802539461
semi-major axis of an orbit
2.560273158212328
mean anomaly
321.178901229437
longitude of ascending node
343.1045274210828
argument of periapsis
91.45099263590666
different from
Doppler
albedo
0.228
rotation period
50.8
time of periapsis
2461161.8590038256
Sources (3)

via Wikidata · CC0