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7815 Dolon

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Also known as Dolon

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
7816 Hanoi
Parent body
Sun
Diameter
42.516
Orbital period
4401.368585897365
Show 16 more facts
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
La Silla Observatory
provisional designation
1993 BO7
time of discovery or invention
1987-08-21
orbital eccentricity
0.05923600328652751
absolute magnitude
10.29
orbital inclination
20.37952785419899
periapsis
4.944703216872531
apoapsis
5.567398084084322
semi-major axis of an orbit
5.256050650478427
mean anomaly
15.34375727521656
longitude of ascending node
147.5177795176241
argument of periapsis
220.0483789512159
albedo
0.089
time of periapsis
2460812.906857609
Sources (3)

via Wikidata · CC0