Skip to content
EntityQ25397745· pop 5

121237 Zachdolch

Sign in to save

Also known as (121237) 1999 RK39, Zachdolch

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
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1992.251272850599
Show 15 more facts
discoverer or inventor
Catalina Sky Survey
orbital eccentricity
0.3184544188323304
absolute magnitude
15.13
mean anomaly
294.3453040224022
argument of periapsis
286.6
orbital inclination
9.562013317085283
longitude of ascending node
106.832100894811
time of discovery or invention
1999-09-08
provisional designation
1999 RK39
site of astronomical discovery
Catalina Station
semi-major axis of an orbit
3.098587686736517
periapsis
2.111828745755824
apoapsis
4.085346627717209
time of periapsis
2461363.8351434167
Sources (3)

via Wikidata · CC0

Available in 5 languages

via Wikidata sitelinks · CC0