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99891 Donwells

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Also known as Donwells

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
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.058
Orbital period
1960.221046435169
Show 16 more facts
discoverer or inventor
Andrew Lowe
time of discovery or invention
2002-08-09
site of astronomical discovery
Haleakalā Observatory
provisional designation
2002 PG165
orbital eccentricity
0.04652084342815611
absolute magnitude
15.19
mean anomaly
122.8061374805295
argument of periapsis
36.23102963258638
orbital inclination
4.95429578191461
longitude of ascending node
296.8512641444833
albedo
0.076
semi-major axis of an orbit
3.065286557248407
periapsis
2.922686841256223
apoapsis
3.207886273240592
time of periapsis
2460331.8134018867
Sources (2)

via Wikidata · CC0

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