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EntityQ2216692· pop 11

21073 Darksky

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Also known as Darksky

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
21074 Rügen
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1515.244827285226
Show 15 more facts
discoverer or inventor
Robert H. McNaught
site of astronomical discovery
Siding Spring Observatory
provisional designation
1999 NM15
time of discovery or invention
1991-09-04
orbital eccentricity
0.2248984767869621
absolute magnitude
14.99
orbital inclination
2.924685001796864
periapsis
2.001158613335577
apoapsis
3.162445258942082
semi-major axis of an orbit
2.58180193613883
mean anomaly
80.21690479192117
longitude of ascending node
295.8850026949079
argument of periapsis
67.74836326414155
time of periapsis
2460662.8659720924
Sources (2)

via Wikidata · CC0