# A Space-based Decametric Wavelength Radio Telescope Concept

## TL;DR

This study presents a detailed design concept for a space-based decametric wavelength radio telescope, focusing on operational aspects, spacecraft configuration, and mission viability to enable future multi-spacecraft radio astronomy missions.

## Contribution

It provides an optimized spacecraft configuration, mission parameters, and preliminary simulations demonstrating the feasibility of a lunar-orbit space-based radio telescope.

## Key findings

- 80% visibility of radio galaxies achieved
- Minimal gravitational and radio interference in lunar orbit
- Preliminary image reconstruction confirms mission viability

## Abstract

This paper reports a design study for a space-based decametric wavelength telescope. While not a new concept, this design study focused on many of the operational aspects that would be required for an actual mission. This design optimized the number of spacecraft to insure good visibility of approx. 80% of the radio galaxies -- the primary science target for the mission. A 5,000 km lunar orbit was selected to guarantee minimal gravitational perturbations from Earth and lower radio interference. Optimal schemes for data downlink, spacecraft ranging, and power consumption were identified. An optimal mission duration of 1 year was chosen based on science goals, payload complexity, and other factors. Finally, preliminary simulations showing image reconstruction were conducted to confirm viability of the mission. This work is intended to show the viability and science benefits of conducting multi-spacecraft networked radio astronomy missions in the next few years.