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(12518) 1998 HM52

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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

(12518) 1998 HM52

Orbit class
Main-belt
Semi-major axis
2.277 AU
Eccentricity
0.216
Inclination
6.122 °
Absolute magnitude
13.860 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
12519 Pullen
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.48
Orbital period
1254.61562583413
Show 17 more facts
discoverer or inventor
Frank B. Zoltowski
site of astronomical discovery
Woomera Village
orbital eccentricity
0.2162272111378639
albedo
0.291
orbital inclination
6.121972175954671
periapsis
1.784288289146022
apoapsis
2.768787077852651
semi-major axis of an orbit
2.276537683499336
mean anomaly
240.6582855142256
longitude of ascending node
85.30525791664196
argument of periapsis
236.1995593759971
absolute magnitude
13.85
time of discovery or invention
1998-04-27
provisional designation
1982 YN
rotation period
7.051
time of periapsis
2461216.4110550215
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0