3 MHz Space Observatory

TL;DR

This paper proposes a cubesat-based space observatory operating at 1-10 MHz to explore the radio universe below the ionospheric cutoff, enabling new astronomical and ionospheric studies.

Contribution

It introduces a novel, cost-effective cubesat design for low-frequency radio astronomy in space, overcoming ionospheric limitations.

Findings

Potential to observe weak extra-Solar System sources

Feasibility of rapid deployment in low Earth orbit

Application to ionospheric research

Abstract

Little is known about the radio astronomical universe at frequencies below 10 MHz because such radiation does not penetrate the ionosphere. A cubesat-based observatory for the 1--10 MHz band could be rapidly and economically deployed in low earth orbit. When shielded by the Earth from Solar emission, it could observe weak extra-Solar System sources. We consider possible transient and steady sources, and application to study of the ionosphere itself.