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EntityQ156660· pop 23

Also known as Pieri

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
Q549919
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
2023.818178978546
Show 15 more facts
discoverer or inventor
Eleanor F. Helin
site of astronomical discovery
Palomar Observatory
provisional designation
1991 PE1
time of discovery or invention
1991-08-15
orbital eccentricity
0.2495358965917135
absolute magnitude
12.74
orbital inclination
18.93039013745855
periapsis
2.349877921677573
apoapsis
3.912587960449058
semi-major axis of an orbit
3.131232941063315
mean anomaly
76.64088269203121
longitude of ascending node
137.346305052591
argument of periapsis
173.9084642099587
time of periapsis
2460569.6466343193
Sources (2)

via Wikidata · CC0