Skip to content
EntityQ5170751· pop 8

(20958) A900 MA

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
(20959) 1936 UG
Parent body
Sun
Minor-planet group
Mars-crossing asteroid
Diameter
2.847
Orbital period
1298.238657532694
Show 16 more facts
discoverer or inventor
James Edward Keeler
provisional designation
A900 MA
time of discovery or invention
1900-06-29
site of astronomical discovery
Lick Observatory
orbital eccentricity
0.2954437563084899
albedo
0.399
absolute magnitude
14.53
orbital inclination
8.16093328413909
periapsis
1.640916220183363
apoapsis
3.017097202807005
semi-major axis of an orbit
2.329006711495184
mean anomaly
32.13539209493018
longitude of ascending node
97.43767976087788
argument of periapsis
187.6810286612117
time of periapsis
2460684.6127547426
Sources (3)

via Wikidata · CC0

Available in 8 languages

via Wikidata sitelinks · CC0