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20218 Dukewriter

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Also known as (20218) 1997 GT34

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

(20218) Dukewriter

Orbit class
Main-belt
Semi-major axis
3.039 AU
Eccentricity
0.124
Inclination
0.892 °
Absolute magnitude
14.440 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
20219 Brianstone
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.669
Orbital period
1936.067714843377
Show 16 more facts
provisional designation
1998 MH16
time of discovery or invention
1997-04-03
orbital eccentricity
0.1234526762460152
orbital inclination
0.8923429265190361
periapsis
2.66475188923446
apoapsis
3.415357688471261
semi-major axis of an orbit
3.04005478885286
mean anomaly
119.8678578484763
longitude of ascending node
91.13291303307987
argument of periapsis
131.3638571382629
absolute magnitude
14.44
albedo
0.115
rotation period
4.99
time of periapsis
2460355.8547510337
Sources (2)

via Wikidata · CC0