ANT61

ANT61 is a UK satellite technology company developing hardware products for small satellite missions. The company's product line addresses two critical gaps in the smallsat market: onboard data storage capacity and satellite mission assurance through independent communications and health monitoring.

The ANT61 DATA module family provides modular, customizable onboard data storage for satellites, ranging from the Small (0.25U, 2.2 MB/day bandwidth) to the Extra Large (50×150×200 mm, up to 6.48 GB/day), with lead times from 1 to 9 weeks. The modular design allows satellite builders to select the appropriate capacity and form factor for their specific mission requirements.

The ANT61 Beacon is the company's flagship product — a satellite-level health monitoring and recovery module proven in space in February 2024. The Beacon operates as a fully independent, always-on system separate from the primary satellite computer (CDHS), providing two-way communication via Iridium inter-satellite links, real-time telemetry (orbital parameters, attitude, radiation events, temperature, vibrations, power bus data), anomaly detection and diagnostics, and recovery command capability. It is designed to fit PC/104 standard connectors and includes an independent battery that sustains operation for up to one week during satellite power loss — providing mission assurance during otherwise unrecoverable failure scenarios.