Speaker
Description
Unintended electromagnetic radiation (UEMR) from large Low Earth Orbit satellite constellations poses a growing threat to radio astronomy. First identified with the Low Frequency Array (LOFAR), this weak but persistent emission from onboard electronics can be broadband and difficult to mitigate, yet is strong enough to contaminate sensitive observations.
Follow-up measurements with other instruments show that UEMR is widespread across a broad frequency range, putting current and future radio telescopes at risk. This threatens key science cases, including studies of the early Universe, for both ground-based observations and planned radio astronomy on the Moon.
Regulatory frameworks within the International Telecommunication Union (ITU) Radiocommunication Sector (ITU-R) do not adequately address UEMR yet, as they focus on intentional transmissions. In parallel, standardisation efforts are emerging in ISO and CISPR.
This contribution presents recent observations, their scientific impact, and ongoing regulatory and standardisation efforts.
| Talk category | Plenary |
|---|
