Near-Earth Co-Orbital Asteroids as Potential Observers: The 2016 HO3 Case and Bracewell Probes

To the point

James Benford argues that tiny near-Earth asteroids sharing Earth’s orbit, especially 2016 HO3, could serve as concealed bases for alien probes to quietly observe Earth, offering concealment, materials, and solar power, a concept linked to the Fermi Paradox and Bracewell probes, with China planning a decade-long mission to HO3 around 2024.

Astronomer probes idea of ET lurkers | Space | EarthSky
earthsky.org

Astronomer probes idea of ET lurkers | Space | EarthSky

What would an extraterrestrial intelligence need to observe Earth, long-term, from nearby? Materials, a firm anchor, concealment? Earths co-orbital objects, or quasi-satellites, might be the ideal place to lurk.