Skip to content
EntityQ711086· pop 13

(8511) 1991 PY10

Sign in to save

main-belt minor planet

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
(8512) 1991 PC11
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.906
Orbital period
1682.888959670883
Show 16 more facts
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
provisional designation
1982 VS
time of discovery or invention
1991-08-07
orbital eccentricity
0.1539762683960834
albedo
0.234
orbital inclination
9.165435620428433
periapsis
2.342541185129603
apoapsis
3.195225895442817
semi-major axis of an orbit
2.76888354028621
mean anomaly
100.6582608664212
longitude of ascending node
187.8630747084048
argument of periapsis
226.2590664722893
absolute magnitude
13.18
time of periapsis
2460529.953678023
Sources (3)

via Wikidata · CC0