Quiet Skies Report: A Primer on Protecting Radio Astronomy in the Age of Satellite Mega-Constellations

TL;DR

This paper explains the challenges satellite mega-constellations pose to radio astronomy, emphasizing the need for regulatory and practical measures to protect astronomical observations amid increasing satellite deployments.

Contribution

It provides an accessible overview of radio astronomy's vulnerability to satellite interference and outlines strategies for coexistence and regulation in the context of expanding satellite constellations.

Findings

Satellite mega-constellations increase radio-frequency interference risks.

Radio astronomy requires new regulatory and technical protections.

Effective coexistence strategies are essential for preserving astronomical research.

Abstract

The rapid expansion of satellite constellations is transforming the radio-frequency environment around the Earth. At the same time, radio astronomy is entering a new era of sensitivity and survey capability, requiring unprecedented control of interference. This primer introduces satellite operators, engineers, spectrum managers and policy makers to the basic concepts of radio astronomy, explains why the discipline is uniquely vulnerable to interference, and outlines the regulatory and practical tools available to manage coexistence.