JUICE

ESA’s Jupiter Icy Moons Explorer, headed for Ganymede, Callisto and Europa after a series of gravity assists.

JPL Horizons · to Jun 2031 Trajectory basis, the same label the app shows on the selection card.

Every aspect, with its origin

One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.

ObservedCatalogComputedReconstructedIllustrativeUndocumented

Trajectory Catalog

Trajectory from Horizons state vectors

JUICE's position is interpolated between 1,444 heliocentric state-vector samples from JPL Horizons that run through 2031-06-02. Past the last sample the marker holds its final position.

SourceJPL Horizons · record juice

Epoch2023-04-15 to 2031-06-02

MethodJ2000 equatorial, Sun-centred position samples loaded from a versioned Blob snapshot. Historical encounter samples are preserved; active mission windows are refreshed daily by Trigger.dev in UTC. The app interpolates linearly between adjacent samples.

UncertaintyAccuracy depends on the mission ephemeris and prediction horizon. Linear interpolation adds error that grows with sample spacing (hours in the current window, finer around historical flybys). No trajectory covariance is stored.

LimitPosition only. Spacecraft attitude (which way it points) is not modelled, and no covariance is stored.

Physical data Catalog

Bulk properties

JUICE: mass 6.070 × 10^3 kg. These values are bundled with the object record and drive the rendered size.

SourceJPL Horizons

Description Undocumented

Description and facts

The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.

SourceSpace Time editorial text

Trajectory coverage: 2023-04-15 to 2031-06-02 (1,444 samples). Outside that window the marker holds its last known position.

What is not measured

Nothing on this page is a reconstruction or a schematic; every record above is observed, catalogued or computed.

Not yet documented

Appearance: no record. Space Time does not claim a source for this aspect.
Description: The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.

Dataset freshness

Snapshots this page depends on, read from the generated manifests at request time.
Dataset	Bundle updated	Horizon	Automated
Spacecraft trajectories (Blob snapshots) JPL Horizons	23 October 2026 Source retrieved: 23 October 2026	Per craft: each evidence page states the first and last sample date	Yes, daily (Trigger.dev) Trigger.dev → private Blob snapshots; preserved historical encounter samples Last successful check: 23 October 2026 · success

Sources cited

JPL Horizons
Space Time editorial text

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