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EntityQ154631· pop 26

Also known as Hartley

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
Malcolm Hartley
Followed by
4769 Castalia
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
34.349
Orbital period
2061.39717586517
Show 17 more facts
discoverer or inventor
Andrew J. Noymer
site of astronomical discovery
Siding Spring Observatory
provisional designation
1988 PH1
time of discovery or invention
1988-08-11
orbital eccentricity
0.2389775518037635
orbital inclination
20.08814517828649
periapsis
2.412346198861637
apoapsis
3.927404237092893
semi-major axis of an orbit
3.169875217977264
mean anomaly
192.9077324751338
longitude of ascending node
320.3987588165641
argument of periapsis
26.09170279841368
absolute magnitude
11.56
albedo
0.039
rotation period
22.08
time of periapsis
2461957.2875788463
Sources (2)

via Wikidata · CC0