Gravisat operates a low‑Earth‑orbit constellation equipped with the world’s first autonomous relativistic gravimeter, delivering real‑time, three‑axis measurements of Earth’s gravity field.
Funding
Funding not disclosed
Founders
Product
Problem
Current gravity field data are derived from sparse, infrequent satellite missions and ground surveys, providing static or low‑frequency models that cannot capture rapid changes in Earth's mass distribution. This limits timely monitoring for applications such as earthquake forecasting, resource exploration, and precise geolocation.
Solution
Gravisat operates a low‑Earth‑orbit constellation equipped with the world’s first autonomous relativistic gravimeter, which measures absolute free‑fall acceleration, its relative variations, and three‑axis gradients in real time. By continuously sampling the gravity field, the system generates a dynamic, high‑resolution model that updates as the planet’s mass distribution evolves. The real‑time data are delivered via a cloud‑based service platform, enabling customers to integrate up‑to‑date gravity information into their workflows without the need for dedicated ground instrumentation. This capability supports environmental monitoring, oil and gas exploration, mining, and other sectors that rely on precise gravity measurements for resource assessment and geolocation.
Target Audience
Primary customers are environmental monitoring agencies, oil and gas companies, and mining firms that require precise, timely gravity data for resource assessment and geolocation.
Features
- Autonomous relativistic gravimeter capable of simultaneous three‑axis absolute acceleration, relative change, and gradient measurements
- Continuous, real‑time monitoring from a LEO satellite constellation delivering up-to-date gravity field data
- High‑precision calibration validated on the ground with 100 % accuracy over 500 km ranges in multiple test campaigns
- Cloud‑based “gravity as a service” platform providing API access to dynamic gravity models for integration into enterprise systems
- Patent‑protected radiophysical gravimetry method and spacecraft architecture ensuring unique measurement capability