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15804 Yenisei

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Also known as Yenisei

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
10.198
Orbital period
1655.270638684574
Show 16 more facts
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
Côte d'Azur Observatory
provisional designation
1997 YC3
time of discovery or invention
1994-03-09
orbital eccentricity
0.05177822677545065
orbital inclination
6.277141533255714
periapsis
2.596711172797206
apoapsis
2.88030115938487
semi-major axis of an orbit
2.738506166091038
mean anomaly
104.0777032917311
longitude of ascending node
116.5099967899479
argument of periapsis
295.0863289837143
absolute magnitude
13.67
albedo
0.066
time of periapsis
2460521.953426665
Sources (2)

via Wikidata · CC0