Summary of SatHub, and the current observational status of satellite constellations

TL;DR

This paper summarizes the current observational efforts and status of satellite constellations, highlighting recent work by SatHub members and discussing future impacts on astronomy and observer activities.

Contribution

It provides an overview of recent observational data, tools, and collaborative efforts related to satellite constellations and their effects on astronomy.

Findings

Current status of satellite constellations summarized

Recent optical and radio observational data presented

Discussion on future satellite proliferation and its implications

Abstract

SatHub is one of the four hubs of the IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference (CPS). It focuses on observations, data analysis, software, and training materials to improve our understanding of the impact of satellite constellations on astronomy and observers worldwide. As a preface to more in-depth IAUS385 sessions, we gave a summary of some recent work by SatHub members and the current status of satellite constellations, including optical and radio observations. We shared how the audience can join or get more involved, e.g., via the CPS Slack for asynchronous collaboration. We also touched on what a future with hundreds of thousands of constellation satellites might look like.