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(13355) 1998 TP17

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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

Small body data

(13355) 1998 TP17

Orbit class
Main-belt
Semi-major axis
3.049 AU
Eccentricity
0.071
Inclination
10.927 °
Absolute magnitude
12.140 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
13.642
Orbital period
1940.772482380228
Show 16 more facts
site of astronomical discovery
Palomar Observatory
orbital eccentricity
0.07183602426535741
albedo
0.217
orbital inclination
10.92604661302925
periapsis
2.826238713703856
apoapsis
3.263716913946713
semi-major axis of an orbit
3.044977813825285
mean anomaly
79.77527490527325
longitude of ascending node
117.4103702303072
argument of periapsis
184.1325363626107
absolute magnitude
12.15
time of discovery or invention
1998-10-14
provisional designation
1987 SO7
rotation period
3.657467
time of periapsis
2460370.4287269153
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0