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200069 Alastor

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Also known as Alastor

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
Diameter
11.854
Orbital period
4503.162788859913
Show 16 more facts
time of discovery or invention
1960-09-24
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
4322 P-L
orbital eccentricity
0.06716181308570324
absolute magnitude
12.81
mean anomaly
112.5332048929521
argument of periapsis
64.08146635857834
longitude of ascending node
341.3552456495371
orbital inclination
6.148576703814247
albedo
0.126
semi-major axis of an orbit
5.336782211360454
periapsis
4.978354242001958
apoapsis
5.69521018071895
time of periapsis
2459592.846275597
Sources (3)

via Wikidata · CC0