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15718 Imokawa

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Also known as (15718) 1990 BB2, Imokawa

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

Small body data

(15718) Imokawa

Orbit class
Main-belt
Semi-major axis
2.592 AU
Eccentricity
0.111
Inclination
11.130 °
Absolute magnitude
13.640 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(15719) 1990 CF
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.486
Orbital period
1524.357817816841
Show 16 more facts
discoverer or inventor
Kazurō Watanabe
site of astronomical discovery
Kushiro
orbital eccentricity
0.1109930412220286
orbital inclination
11.12990032968683
periapsis
2.304433380468779
apoapsis
2.879853103939515
semi-major axis of an orbit
2.592143242204147
mean anomaly
208.0188297010027
longitude of ascending node
305.0542592702913
argument of periapsis
191.2960662979679
absolute magnitude
13.64
time of discovery or invention
1990-01-30
provisional designation
1973 AK
albedo
0.281
time of periapsis
2461644.0380141838
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0