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EntityQ152656· pop 26

Also known as Thraen

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
Q152657
Follows
Q152655
Parent body
Sun
Diameter
13.854
Orbital period
2110.488245745057
Show 16 more facts
discoverer or inventor
Freimut Börngen
site of astronomical discovery
Karl Schwarzschild Observatory
provisional designation
1987 YB1
time of discovery or invention
1987-11-26
orbital eccentricity
0.1285552856148329
orbital inclination
2.933415501112177
periapsis
2.806055009758568
apoapsis
3.633951942921918
semi-major axis of an orbit
3.220003476340243
mean anomaly
174.0367261184816
longitude of ascending node
99.30972403460093
argument of periapsis
12.16516632395185
absolute magnitude
13.16
albedo
0.064
time of periapsis
2459980.215375553
Sources (3)

via Wikidata · CC0