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(9946) 1990 ON2

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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
Followed by
9947 Takaishuji
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
2.74
Orbital period
1241.166812772348
Image
AnimatedOrbitOf99461990ON2.gif
Show 16 more facts
provisional designation
1990 ON2
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
time of discovery or invention
1990-07-29
orbital inclination
3.178103143902864
orbital eccentricity
0.07579680509744083
albedo
0.539
periapsis
2.088920686178315
apoapsis
2.431558571412987
semi-major axis of an orbit
2.260239628795651
mean anomaly
170.3181677064032
longitude of ascending node
2.10762474624015
argument of periapsis
281.8310071496441
absolute magnitude
14.35
time of periapsis
2460413.2965073073
Sources (3)

via Wikidata · CC0