Skip to content
3391 Sinon

Image by Gunladdy on Pixabay · Pixabay License

EntityQ151455· pop 28· linked from 7 articles

3391 Sinon

Sign in to save

Also known as Sinon

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

Diameter
37.862
Orbital period
4445.34921018327
Image
003391-asteroid shape model (3391) Sinon.png
Show 15 more facts
provisional designation
1977 DD3
time of discovery or invention
1977-02-18
orbital inclination
14.88329266716112
orbital eccentricity
0.08266667471052458
absolute magnitude
10.34
periapsis
4.853616689204752
apoapsis
5.72839653411979
semi-major axis of an orbit
5.291006611662271
argument of periapsis
104.9814511726558
mean anomaly
65.55025193415217
longitude of ascending node
341.0630046780423
Commons category
3391 Sinon
albedo
0.093
rotation period
8.135
time of periapsis
2460191.0728870477
Sources (3)

via Wikidata · CC0

Gallery (2)

Connections

Categories