Different tracking engine
Earth satellites use CelesTrak orbital elements and SGP4. Interplanetary spacecraft use NASA/JPL Horizons vectors because TLE/SGP4 is not the correct model for deep-space trajectories.
DEEP SPACE
Track missions beyond Earth orbit
Explore Voyager, JWST and active interplanetary missions using NASA/JPL Horizons ephemerides. Deep-space spacecraft are kept separate from Earth-orbit SGP4 tracking.
MISSION DIRECTORY
Deep-space spacecraft
NASA/JPL
Voyager 1
The most distant human-made spacecraft, continuing its interstellar mission beyond the heliopause.
Interstellar spaceOpen tracker →
NASA/JPLVoyager 2
The only spacecraft to have visited Uranus and Neptune, now continuing through interstellar space.
Interstellar spaceOpen tracker →
NASA/ESA/CSAJames Webb Space Telescope
A large infrared observatory operating in a halo orbit around the Sun–Earth L2 region.
Sun–Earth L2 regionOpen tracker →
NASANew Horizons
The Pluto and Kuiper Belt mission continuing through the outer solar system.
Kuiper BeltOpen tracker →
NASAParker Solar Probe
A solar mission repeatedly flying through the Sun’s outer corona to study the solar wind and energetic particles.
Inner heliosphere / SunOpen tracker →
ESA/NASASolar Orbiter
A solar observatory studying the Sun and heliosphere, including high-latitude views of the solar poles.
SunOpen tracker →
ESA/JAXABepiColombo
A joint ESA/JAXA mission in its Mercury arrival phase, designed to study the innermost planet.
MercuryOpen tracker →
ESAJUICE
The Jupiter Icy Moons Explorer is travelling to the Jupiter system to study Ganymede, Callisto and Europa.
Jupiter systemOpen tracker →
NASAEuropa Clipper
A mission travelling to Jupiter for repeated close flybys of Europa.
Jupiter / EuropaOpen tracker →
NASALucy
A multi-target mission to primitive asteroids, including Jupiter’s Trojan populations.
Jupiter Trojan asteroidsOpen tracker →
NASAPsyche
A mission travelling to the metal-rich asteroid Psyche in the main asteroid belt.
Asteroid 16 PsycheOpen tracker →
ESAHera
ESA’s planetary-defence mission travelling to survey the Didymos binary asteroid system after the DART impact.
Didymos / DimorphosOpen tracker →
Ephemeris snapshots
Deep-space coordinates are retrieved server-side and cached to reduce load. Distances and vectors are presented as ephemeris-derived values, not direct spacecraft telemetry.
Scale
The interactive scene uses a compressed visual scale so nearby and extremely distant missions can be viewed on one screen. Numeric distances remain the authoritative values.