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(20959) 1936 UG

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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
(20960) 1971 UR
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.151
Orbital period
1537.005553358571
Show 16 more facts
discoverer or inventor
Marguerite Laugier
provisional designation
1999 RM173
time of discovery or invention
1936-10-21
site of astronomical discovery
Nice Observatory
orbital eccentricity
0.3135446529609497
albedo
0.242
absolute magnitude
13.86
orbital inclination
6.138796922511355
periapsis
1.789219538586022
apoapsis
3.423703767507008
semi-major axis of an orbit
2.606461653046515
mean anomaly
343.5847766725155
longitude of ascending node
104.774192210539
argument of periapsis
323.6865138207547
time of periapsis
2460870.584137261
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0