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25478 Shrock

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Also known as Shrock

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

25478 Shrock (1999 XR45)

Orbit class
Main-belt Asteroid
Absolute magnitude
15.630 H
Earth MOID
1.020 AU

via NASA/JPL Small-Body Database

Wikidata facts

Instance of
asteroid
Followed by
25479 Ericshyu
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1293.106015259202
Show 14 more facts
time of discovery or invention
1999-12-07
provisional designation
2001 FY20
orbital eccentricity
0.125989821574841
mean anomaly
308.2646045615347
longitude of ascending node
278.0545055866291
argument of periapsis
316.3703608723798
absolute magnitude
15.63
orbital inclination
3.327001136438646
periapsis
2.030206873064088
apoapsis
2.615521341960203
semi-major axis of an orbit
2.322864107512146
time of periapsis
2461186.3315306758
Sources (2)

via Wikidata · CC0