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EntityQ711776· pop 16· linked from 8 articles

Also known as (8026) 1991 JA1, Johnmckay

inner 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
Parent body
Sun
Diameter
1.69
Orbital period
975.5399188233997
Show 17 more facts
discoverer or inventor
Eleanor F. Helin
site of astronomical discovery
Palomar Observatory
provisional designation
1991 JA1
time of discovery or invention
1991-05-08
orbital eccentricity
0.07519526394153843
absolute magnitude
14.95
orbital inclination
19.93371414408972
periapsis
1.780250531583095
apoapsis
2.069752527809881
semi-major axis of an orbit
1.925001529696488
mean anomaly
208.2830240643393
longitude of ascending node
217.6579167191798
argument of periapsis
145.8024491495764
albedo
0.815
rotation period
372.0
time of periapsis
2461411.627684412
Sources (2)

via Wikidata · CC0