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(73642) 1978 RV9

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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
(73643) 1978 UA5
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
1.759
Orbital period
1484.097428349283
Show 16 more facts
time of discovery or invention
1978-09-02
discoverer or inventor
Claes-Ingvar Lagerkvist
site of astronomical discovery
La Silla Observatory
provisional designation
1998 KP40
absolute magnitude
15.73
albedo
0.36
orbital eccentricity
0.2530496936389046
semi-major axis of an orbit
2.546298556121891
periapsis
1.901958486582061
apoapsis
3.190638625661721
orbital inclination
5.26780013595261
longitude of ascending node
157.6601903090803
argument of periapsis
130.4986515157518
mean anomaly
244.3803340129263
time of periapsis
2461477.141247106
Sources (2)

via Wikidata · CC0

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via Wikidata sitelinks · CC0