RESOURCES / INTERACTIVE MODELS

Explore the physics.
Check the numbers.

Our models of orbits, power and heat, formation flying, the path of a request, costs and radiation are public and interactive, with their methods and limits on each page. Detailed engineering material is shared directly with partners.

Interactive models.

ORBIT AND SUNLIGHT

Ride the terminator.

A dawn–dusk orbit, Earth's shadow and the sunlight a spacecraft receives through the year.

POWER AND HEAT

Size a node.

Solar arrays, battery and radiators for a chosen orbit, compute power and technology year.

FORMATION AND CONTROL

Fly a cluster.

Nodes in free fall, a node that fails and the way each node leaves orbit at the end of its life.

FROM REQUEST TO ANSWER

Follow a request.

A question about a place on Earth, the contacts and passes it waits for, and the answer computed on board.

ECONOMICS

Price a GPU-hour.

Launch and satellite costs year by year to 2045 against the ground, and how big each node should be.

RADIATION

Fly through the belts.

The South Atlantic Anomaly, cosmic rays and a great solar storm, and what they mean for the chips on board.

DESIGN STUDY

Choose the cluster.

A thousand one-megawatt designs flown through the simulation, and why ours is tilted, at 650 km, in 100 kW nodes.

Continue the conversation.

OPERATORS

A task worth testing.

Bring a workload, data and mission constraints to a design-partner discussion.

HOSTS

Room for a compact payload.

Talk to us about hosting SI-P1: about 5 kg, 28 V and conduction cooling through the host.

ENGINEERS

Help build the first mission.

We are seeking a technical cofounder and expertise in flight software and payload qualification.