Skip to content
EntityQ1483671· pop 10

(9118) 1997 GD20

Sign in to save

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

Small body data

(9118) 1997 GD20

Orbit class
Main-belt
Semi-major axis
3.032 AU
Eccentricity
0.272
Inclination
1.002 °
Absolute magnitude
13.320 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Follows
9117 Aude
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.794
Orbital period
1928.788360193236
Show 15 more facts
provisional designation
1994 YR4
time of discovery or invention
1997-04-05
orbital eccentricity
0.2716808506712616
albedo
0.153
orbital inclination
1.002187104576237
periapsis
2.208576746133915
apoapsis
3.856283001600217
semi-major axis of an orbit
3.032429873867066
mean anomaly
4.513672215815681
longitude of ascending node
96.66433597012212
argument of periapsis
263.849772715195
absolute magnitude
13.33
time of periapsis
2460976.3168932456
Sources (2)

via Wikidata · CC0