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18928 Pontremoli

Image by acconsulenze on Pixabay · Pixabay License

EntityQ2708548· pop 14

18928 Pontremoli

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Also known as Pontremoli

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
Pontremoli
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.416
Orbital period
1916.061370570864
Image
PONTREMOLI.jpg
Show 17 more facts
discoverer or inventor
Monte Viseggi Observatory
provisional designation
2000 QH9
time of discovery or invention
2000-08-25
site of astronomical discovery
Monte Viseggi Observatory
orbital eccentricity
0.1138612751151717
absolute magnitude
13.68
orbital inclination
9.770183986628064
periapsis
2.675319827164679
apoapsis
3.362831428469458
semi-major axis of an orbit
3.019075627817069
mean anomaly
258.6129436599279
longitude of ascending node
318.0536986236207
argument of periapsis
53.41645432411956
albedo
0.171
rotation period
7.39447
time of periapsis
2461540.121728136
Sources (3)

via Wikidata · CC0

Gallery (2)