Constellation operations
Plan station-keeping and collision-avoidance maneuvers around drag forecasts instead of reacting to them — and keep more satellites in their slots.
Space weather · forecasting engine
Stay ahead of the space weather that threatens your satellites.
HelioSat forecasts the space environment along your orbits — drag, radiation, and charging — so your team can plan maneuvers and protect hardware before disruptions hit, not after.
Built by ex-NASA engineers · In pilot with select operators
The problem
Space weather is operational risk you can’t currently see.
Satellites in low Earth orbit live inside a dynamic environment. Most teams are forced to react to it instead of planning around it.
01
The data is fragmented
Operators stitch together public indices, TLEs, and spreadsheets. By the time a drag spike or radiation event is obvious, the window to act has already closed.
02
Global indices are too coarse to act on
Kp and F10.7 describe the whole planet. They don’t tell you what’s happening at your altitude, your inclination, or your specific spacecraft.
03
Every anomaly is expensive
Unplanned safe-modes, wasted propellant, and missed maneuver windows turn a quiet sun into real operational cost — and hard questions from stakeholders.
How it works
A compute engine you can pilot in weeks, not quarters.
We run pilots as a thin API engagement: you keep your stack, we deliver forecasts you can validate against your own missions.
- 1
Send us your orbits
Share TLEs or ephemerides and the parameters you care about — drag, radiation dose, surface charging. No integration required to start a pilot.
- 2
We run the engine
HelioSat models the space environment along each orbit and resolves it to your spacecraft, altitude, and time window — not a planet-wide average.
- 3
You get results via API
Receive forecasts as structured data through a simple API: drag predictions, event alerts, and confidence intervals your existing tools can consume directly.
Start a pilot
30-minute call to scope your orbits and the parameters that matter to you.
Why HelioSat
Mission experience meets frontier science.
The hard part of space weather isn’t the physics or the software alone — it’s knowing which signals an operator can actually act on. We’ve been on both sides of that problem.
That combination — operational rigor and research depth — is what lets us turn a chaotic environment into forecasts a mission team can trust.
- Founding team
- Ex-NASA engineers
- Research heritage
- Imperial College London
- Stage
- In active pilots
Founded by engineers who designed, built, and flew operational space systems — people who have owned the consequences of a bad environment forecast.
Anchored in frontier heliophysics research, with affiliation to one of the world’s leading space and plasma physics groups.
Working hands-on with a small set of operators to validate forecasts against real missions before a wider release.
Use cases
Built for the decisions that don’t wait for the sun.
Mission & launch planning
Size propellant budgets and choose operations windows with altitude-specific environment forecasts, before the design is locked.
Anomaly & risk analysis
Correlate on-orbit anomalies with radiation and charging conditions, and brief insurers and stakeholders with quantified, defensible data.
Currently onboarding pilot customers
If you run satellites, let’s forecast their environment together.
We’re working hands-on with a small number of operators to validate the engine against real missions. Book a 30-minute call to see whether your orbits are a fit.