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EntityQ918670· pop 27

Also known as Heimdal

main belt 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
Named after
Heimdall
Followed by
3991 Basilevsky
Follows
3989 Odin
Parent body
Sun
Diameter
35.675
Orbital period
2860.46805431954
Show 17 more facts
discoverer or inventor
Poul Jensen
site of astronomical discovery
Brorfelde Observatory
provisional designation
1988 XK2
time of discovery or invention
1987-09-25
orbital eccentricity
0.2418938922143806
absolute magnitude
11.01
orbital inclination
9.495346719459373
periapsis
2.989664438687624
apoapsis
4.897528153442381
semi-major axis of an orbit
3.943596296065002
mean anomaly
287.6906892779929
longitude of ascending node
192.5838777912662
argument of periapsis
198.1548587727994
albedo
0.067
rotation period
45.83
time of periapsis
2461575.0513148615
Sources (2)

via Wikidata · CC0