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17439 Juliesan

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Also known as (17439) 1989 TR3, Juliesan

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
8.593
Orbital period
2056.78061104785
Show 16 more facts
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
La Silla Observatory
provisional designation
1994 RQ14
time of discovery or invention
1989-10-07
orbital eccentricity
0.03168703943679512
absolute magnitude
14.07
orbital inclination
9.51357080750923
periapsis
3.064846818477778
apoapsis
3.265434698553978
semi-major axis of an orbit
3.165140758515878
argument of periapsis
94.01134909964493
mean anomaly
264.025861376488
longitude of ascending node
168.0081125933215
albedo
0.087
time of periapsis
2461548.8270763415
Sources (2)

via Wikidata · CC0

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