Cesium Satellite Spacecraft

Demonstrate active phased array and inter-satellite link payloads.

Cesium Satellite 1 and 2 are 6U CubeSats with Cesium Nightingale 1 active phased array and inter-satellite link payloads. The spacecrafts have a high-accuracy attitude system with a star tracker and a state-of-the-art electric propulsion system.

Demonstrate proprietary hardware and software in addition to testing intersatellite links and Ka-band communications.

Once the cubesats are in orbit, Cesium plans to demonstrate the performance of its Ka-band active phased array, software-defined radio and single-board computer, a device about the size of a credit card. In addition, the firm plans to conduct on-orbit experiments.

Cesium is offering customers the ability to purchase time on the five-year Cesium Mission 1 to experiment with active phased array and intersatellite links. Customers have expressed interest, for example, in testing waveform switching, edge processing and communications link optimization