Skip to content
12598 Sierra

Image by WildFox on Pixabay · Pixabay License

EntityQ1090889· pop 17

12598 Sierra

Sign in to save

Also known as Sierra, (12598) Sierra

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
12599 Singhal
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.735
Orbital period
1655.625740720048
Show 15 more facts
provisional designation
1999 RC159
time of discovery or invention
1999-09-09
orbital eccentricity
0.07373067857809176
orbital inclination
9.46626602110302
periapsis
2.536957015671079
apoapsis
2.94083860380732
semi-major axis of an orbit
2.7388978097392
mean anomaly
87.28042811077808
longitude of ascending node
152.5013542921343
argument of periapsis
23.81254599417499
absolute magnitude
14.36
albedo
0.217
time of periapsis
2460599.1007682187
Sources (2)

via Wikidata · CC0

Gallery (2)