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29663 Evanmackay

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Also known as (29663) 1998 WH23

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
1.86
Orbital period
1226.414139587296
Show 15 more facts
time of discovery or invention
1998-11-18
provisional designation
1998 WH23
orbital eccentricity
0.07802276065532113
orbital inclination
4.68774799128586
periapsis
2.067343682313542
apoapsis
2.41724355930419
semi-major axis of an orbit
2.242293620808866
mean anomaly
341.62374180993
longitude of ascending node
69.53696953181067
argument of periapsis
25.03103041662815
absolute magnitude
15.99
albedo
0.268
time of periapsis
2461063.1025079917
Sources (2)

via Wikidata · CC0

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