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(8584) 1997 AN22

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main-belt minor planet

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

Small body data

(8584) 1997 AN22

Orbit class
Main-belt
Semi-major axis
3.023 AU
Eccentricity
0.080
Inclination
9.200 °
Absolute magnitude
12.590 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
8585 Purpurea
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
12.332
Orbital period
1920.341977964031
Show 17 more facts
provisional designation
1984 UY3
site of astronomical discovery
Xinglong Station
time of discovery or invention
1997-01-11
orbital eccentricity
0.08002642351697893
albedo
0.11
orbital inclination
9.200651594920014
periapsis
2.781604964651609
apoapsis
3.265536031039686
semi-major axis of an orbit
3.023570497845648
mean anomaly
357.5569956676721
longitude of ascending node
293.5219957461844
argument of periapsis
2.701830082577769
absolute magnitude
12.59
rotation period
31.52
time of periapsis
2461013.5316771436
Sources (2)

via Wikidata · CC0