Jupiter

Juno expedition profile.

Juno uses a highly elliptical polar orbit to study Jupiter's interior, magnetic field, gravity, atmosphere, and auroras while limiting radiation exposure.

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Mission facts

Launch, target, and status

Target
Jupiter
Agency
NASA / JPL
Launch
August 5, 2011
Arrival / encounter
July 4, 2016
Mission type
Polar orbiter
Current status
Operating extended Jupiter mission
Launch vehicle
Atlas V
Reference target orbit
5.203 AU from Sun

Expedition path

How the spacecraft travelled

Earth gravity assist and Jupiter polar orbit insertion.

Refined Jupiter interior models, water-ammonia atmosphere structure, polar cyclones, and magnetic-field complexity.

Science Payload

What this mission measured

Measurements

Gravity science, magnetometry, microwave radiometry, plasma, energetic particles, ultraviolet/infrared aurora, and public imaging.

Target environment

The target reference is 5.203 AU in the compact simulator; solar-probe entries use close-solar perihelion distance while planet entries use the target world's solar orbit.

Review note

The canvas shows a clean teaching transfer and mission class. Exact flight dynamics require full ephemerides, maneuvers, launch energy, spacecraft mass properties, and operations timelines.

Expedition review

Why Juno matters

Refined Jupiter interior models, water-ammonia atmosphere structure, polar cyclones, and magnetic-field complexity.

Mathematical model

Mission trajectory and spacecraft model

Mission visuals combine catalog dates, distance vectors, speed estimates, and schematic spacecraft geometry. They are not CAD-certified vehicle meshes unless a source model is explicitly loaded.

Vector propagation

\[\mathbf{r}(t)=\mathbf{r}_0+\mathbf{v}(t-t_0)\]

For live-distance spacecraft pages, current position is propagated from epoch vector and velocity when high-precision ephemerides are not bundled.

Transfer curve

\[\mathbf{r}_{\mathrm{curve}}(u)=\operatorname{Bezier}\!\left(\mathbf{r}_{\mathrm{launch}},\mathbf{r}_{\mathrm{mid}},\mathbf{r}_{\mathrm{target}}\right)\]

Mission path arcs are schematic transfer curves anchored at meaningful endpoints, not claims of exact reconstructed trajectories.

Dimensional hierarchy

\[T_{\mathrm{world}}=T_{\mathrm{parent}}RS\]

Spacecraft parts are placed with transformation matrices. This proves the generated geometry is internally consistent even when simplified.

Verification standard: the rendered object must be reproducible from stated equations, catalog parameters, or explicit geometric transforms. Visual reference images may inform presentation only; they are not the source of orbital positions, field vectors, accretion-disk gradients, timing, or engineering layout.

Limitations: browser scenes may use bounded scale, compressed distances, simplified two-body dynamics, schematic transfer curves, or educational approximations where full numerical ephemerides, CFD, finite-element models, or general-relativistic ray tracing are outside the page scope. Those simplifications are part of the model contract, not hidden image-based construction.

Open the full site-wide mathematical verification policy