This seminar will explore methods for analyzing and optimizing satellite constellations specifically designed for regional coverage. While large-scale global coverage satellite constellations offer high temporal and spatial resolutions, their high cost, large number of satellites, and generic observation capabilities often make them inefficient for addressing region-specific, seasonally recurring, and rapidly changing climate disasters, such as wildfires, floods, extreme storms, landslides, and deforestation crimes . This seminar focuses on designing constellations tailored to meet complex coverage requirements for specific regions. The presentation is based on the work of Hang Woon Lee (1*) and collaborators, which introduces a comprehensive approach to designing constellations that satisfy variable spatial and temporal coverage requirements while minimizing the number of satellites needed. Key points include: 1) A brief literature review on the evolution and interconnections of satellite constellation designs. 2) Explanation of circular convolution principles in repeating orbits, simplifying the analysis of multiple targets or sub-constellations. 3) Introduction of an optimization method for designing efficient constellation patterns, accounting for diverse constraints and complexities. 4) Examples of constellations designed for regional coverage. By the end of the seminar, participants will gain insights into applying these optimization methods to address regional challenges. Discussions will focus on fostering collaborations, particularly in the development of a satellite constellation aimed at rapid wildfire detection in Portugal and other affected areas.
Organized by: Catarina Cosme