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(9182) 1991 NB4

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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

(9182) 1991 NB4

Orbit class
Main-belt
Semi-major axis
2.286 AU
Eccentricity
0.089
Inclination
3.729 °
Absolute magnitude
13.730 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(9183) 1991 OW
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.767
Orbital period
1262.480994179379
Show 17 more facts
discoverer or inventor
Henri Debehogne
site of astronomical discovery
La Silla Observatory
provisional designation
1992 YU
time of discovery or invention
1991-07-08
orbital eccentricity
0.0888486843074017
albedo
0.106
orbital inclination
3.729328468207659
periapsis
2.082930541259076
apoapsis
2.489154260431117
semi-major axis of an orbit
2.286042400845097
mean anomaly
208.9307160845201
longitude of ascending node
270.9615209375829
argument of periapsis
157.4714756672475
absolute magnitude
13.7
rotation period
5.416
time of periapsis
2461530.28361041
Sources (3)

via Wikidata · CC0