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16111 Donstrittmatter

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Also known as (16111) 1999 XT4, 1999 XT4, Donstrittmatter

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
16112 Vitaris
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.5
Orbital period
1397.589626901732
Show 16 more facts
discoverer or inventor
Catalina Sky Survey
provisional designation
1999 XT4
time of discovery or invention
1999-12-04
site of astronomical discovery
Catalina Station
orbital eccentricity
0.1686699989820264
albedo
0.275
orbital inclination
3.889620750832645
periapsis
2.033734618966526
apoapsis
2.858990571935266
semi-major axis of an orbit
2.446362595450896
mean anomaly
39.1741911412459
longitude of ascending node
90.14857784851864
argument of periapsis
198.1697440902814
absolute magnitude
14.68
time of periapsis
2460848.418213385
Sources (4)

via Wikidata · CC0