Skip to content
EntityQ1482414· pop 7

(20970) 1981 DD1

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

Wikidata facts

Instance of
asteroid
Followed by
(20971) 1981 DR1
Follows
20969 Samo
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1472.408600203491
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1999 RE207
time of discovery or invention
1981-02-28
orbital eccentricity
0.1217314098813361
albedo
0.172
absolute magnitude
15.03
orbital inclination
14.51300490074298
periapsis
2.224576253079608
apoapsis
2.841245929583313
semi-major axis of an orbit
2.532911091331461
mean anomaly
51.80369985139082
longitude of ascending node
331.9870170378458
argument of periapsis
126.26256225
time of periapsis
2460588.6216300456
Sources (3)

via Wikidata · CC0

Available in 7 languages

via Wikidata sitelinks · CC0