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15663 Periphas

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Also known as (15663) Periphas, Periphas

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
(15664) 4050 T-3
Parent body
Sun
Minor-planet group
Jupiter trojan
Diameter
36.2
Orbital period
4342.537368591815
Show 16 more facts
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
4168 T-2
time of discovery or invention
1973-09-29
orbital eccentricity
0.104906484693026
orbital inclination
33.86295225567437
periapsis
4.662639470560132
apoapsis
5.755578047105765
semi-major axis of an orbit
5.209108758832948
mean anomaly
133.7138226835997
longitude of ascending node
12.1055318657123
argument of periapsis
25.07778372464598
absolute magnitude
10.85
albedo
0.071
time of periapsis
2459387.5631341645
Sources (2)

via Wikidata · CC0