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(73641) 1977 UK3

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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
(73642) 1978 RV9
Parent body
Sun
Diameter
14.693
Orbital period
4391.223186498631
Show 16 more facts
time of discovery or invention
1977-10-18
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Palomar Observatory
provisional designation
1977 UK3
albedo
0.082
absolute magnitude
12.68
orbital eccentricity
0.04779380984758559
semi-major axis of an orbit
5.247970551578443
periapsis
4.997150044950573
apoapsis
5.498791058206312
orbital inclination
4.417868746977393
longitude of ascending node
240.5344440507392
argument of periapsis
31.56357099227905
mean anomaly
111.4680670338774
time of periapsis
2459440.830109685
Sources (3)

via Wikidata · CC0

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