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EntityQ3597079· pop 15

11401 Pierralba

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Also known as Pierralba

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
(11402) 1999 BD
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.947
Orbital period
1234.013191002747
Show 17 more facts
discoverer or inventor
OCA-DLR Asteroid Survey
site of astronomical discovery
Caussols
provisional designation
1999 AF25
time of discovery or invention
1999-01-15
orbital eccentricity
0.1998274467932599
orbital inclination
4.973913905050488
periapsis
1.801625695748152
apoapsis
2.701467264709009
semi-major axis of an orbit
2.251546480228581
mean anomaly
203.3372661219437
longitude of ascending node
355.861447927721
argument of periapsis
316.6104504207495
absolute magnitude
14.16
albedo
0.238
rotation period
48.312
time of periapsis
2461537.510778178
Sources (2)

via Wikidata · CC0