The ICEYE constellation, as of April 2020, consists of three X-band Synthetic Aperture Radar (SAR) satellites. Over the next years, ICEYE will continue to grow its constellation capacity in specialised orbital planes designed to provide a persistent, high resolution view of the Earth's surface. The ICEYE vision is to bring a new service to the market with an emphasis on superior reliability, a vastly higher rate of revisits to individual locations, and an unprecedented objectivity. The service is based on a completely new satellite and sensor design, leveraging recent advancement in various technologies and the New Space approach.
Each ICEYE satellite is in a sun-synchronous orbit with a nominal 18 - 22 day ground track repeat cycle (depending on satellite) with 15 imaging orbits per day. Each orbit plane is phased around the Earth with a different local time of ascending node (LTAN) and descending node (LTDN). This means that the constellation as a whole has the ability to observe a location at different times of the day rather than the more conventional dawn-dusk sun-synchronous orbit.
This mission is considered a Third Party Mission under evaluation. The evaluation will tackle cal/val activities and assess the products specifications. This analysis will be performed in the framework of the Earthnet Data Assessment Pilot (EDAP). The evaluation will also allow any interested users to investigate the suitability of the data for scientific and R&D activities.
The flexibility of the satellites facilitates imaging modes to be constantly evolved. Currently, the satellites operate in two primary modes called 'Spotlight Mode' and 'Stripmap Mode' with each mode providing different output imaging capabilities depending on tasking and exploitation requirements.
|Nominal Altitude||570 km||570 km||570 km|
|Orbits / Day||15|
|Ground track repeat||18 days||22 days||22 days|
|Constellation mean revisit at equator||20 hours|
|Nodal crossing||Nominal value: 10:30 LTDN||Nominal value: 15:05 LTAN||Nominal value: 15:05 LTAN|