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(9740) 1987 ST11

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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

Wikidata facts

Instance of
asteroid
Followed by
9741 Solokhin
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.664
Orbital period
1324.754370083454
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provisional designation
1969 UQ2
discoverer or inventor
Henri Debehogne
site of astronomical discovery
La Silla Observatory
time of discovery or invention
1987-09-23
orbital eccentricity
0.1309651274265441
albedo
0.095
orbital inclination
5.782159234224654
periapsis
2.051454205978157
apoapsis
2.669769926036767
semi-major axis of an orbit
2.360612066007462
mean anomaly
160.399337903803
longitude of ascending node
45.20490552469951
argument of periapsis
356.1137173982905
absolute magnitude
14.11
rotation period
10.3
time of periapsis
2460410.2507670927
Sources (3)

via Wikidata · CC0