Ride the terminator.
A dawn–dusk orbit, Earth's shadow and the sunlight a spacecraft receives through the year.
RESOURCES / INTERACTIVE MODELS
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.
A dawn–dusk orbit, Earth's shadow and the sunlight a spacecraft receives through the year.
Solar arrays, battery and radiators for a chosen orbit, compute power and technology year.
Nodes in free fall, a node that fails and the way each node leaves orbit at the end of its life.
A question about a place on Earth, the contacts and passes it waits for, and the answer computed on board.
Launch and satellite costs year by year to 2045 against the ground, and how big each node should be.
The South Atlantic Anomaly, cosmic rays and a great solar storm, and what they mean for the chips on board.
A thousand one-megawatt designs flown through the simulation, and why ours is tilted, at 650 km, in 100 kW nodes.
Bring a workload, data and mission constraints to a design-partner discussion.
Talk to us about hosting SI-P1: about 5 kg, 28 V and conduction cooling through the host.
We are seeking a technical cofounder and expertise in flight software and payload qualification.