Skip to content
EntityQ152684· pop 26

4115 Peternorton

Sign in to save

Also known as Peternorton

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

(4115) Peternorton

Orbit class
Main-belt
Semi-major axis
3.003 AU
Eccentricity
0.039
Inclination
9.561 °
Absolute magnitude
12.390 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Named after
Peter Norton
Followed by
4116 Elachi
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
14.422
Orbital period
1902.216804864143
Show 16 more facts
discoverer or inventor
Nikolai Chernykh
site of astronomical discovery
Crimean Astrophysical Observatory
provisional designation
1987 PE
time of discovery or invention
1982-08-29
orbital eccentricity
0.03976938770318163
mean anomaly
333.6315768428251
longitude of ascending node
206.4413887944998
argument of periapsis
286.2303862617124
absolute magnitude
12.4
orbital inclination
9.55967649734883
periapsis
2.885027377092601
apoapsis
3.124002829082092
semi-major axis of an orbit
3.004515103087347
albedo
0.166
time of periapsis
2461139.8290490205
Sources (2)

via Wikidata · CC0