Skip to content
12242 Koon

Image by peterpoogle on Pixabay · Pixabay License

EntityQ2214453· pop 16

12242 Koon

Sign in to save

Also known as (12242) Koon, Koon

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
(12243) 1988 RD1
Parent body
Sun
Diameter
37.861
Orbital period
4230.326616607961
Show 17 more facts
discoverer or inventor
Eugene Merle Shoemaker
site of astronomical discovery
Palomar Observatory
provisional designation
1988 QY
time of discovery or invention
1988-08-18
orbital eccentricity
0.06840167766138389
orbital inclination
29.7621889861836
periapsis
4.768835550711827
apoapsis
5.4691295386638
semi-major axis of an orbit
5.118982544687814
mean anomaly
94.7836073173823
longitude of ascending node
222.6296820640407
argument of periapsis
96.03706338190402
absolute magnitude
10.9
albedo
0.071
rotation period
17.0111
time of periapsis
2459886.706619853
Sources (3)

via Wikidata · CC0

Gallery (2)