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EntityQ154821· pop 26· linked from 152 articles

Also known as (4902) Thessandrus, Thessandrus

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
4903 Ichikawa
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
51.263
Orbital period
4332.118321310213
Show 17 more facts
discoverer or inventor
Carolyn S. Shoemaker
site of astronomical discovery
Palomar Observatory
provisional designation
1989 AN2
time of discovery or invention
1989-01-09
orbital eccentricity
0.0430489683646504
semi-major axis of an orbit
5.200773282395516
mean anomaly
74.84147226762607
longitude of ascending node
170.2716145845843
argument of periapsis
273.067801280504
absolute magnitude
9.84
orbital inclination
9.076339748085623
periapsis
4.976885357889952
apoapsis
5.42466120690108
albedo
0.081
rotation period
738.0
time of periapsis
2460099.8830188764
Sources (3)

via Wikidata · CC0