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astro-ph.EP2026
Detecting space objects with Earth-observation radar satellites
Juha Vierinen, Laura-Kristin Scholtz, Ulrik Noer +3
Millimetre-to-centimetre orbital debris poses a hazard to spacecraft, but its abundance remains difficult to measure. Spaceborne radars offer a substantial sensitivity advantage at…
astro-ph.EP2026
Radar and Infrasound Observations of the 2026 May 30 Cape Cod Bay Superbolide
Juha Vierinen, Ryan Volz, Marc Fries +10
Metre-scale impactors connect near-Earth-object dynamics, atmospheric-entry physics and meteorite delivery, but their pre-impact orbits and material properties are rarely measured…
astro-ph.EP2026
The PANSY Meteor Head-echo Orbit Catalogue: Continuous Antarctic Radar Observations of Southern Meteoroid Streams
Juha Vierinen, Jorge L. Chau, Koji Nishimura +7
Meteor head echoes from high-power, large-aperture radars provide pulse-resolved positions and velocities for individual micrometeoroids in a submillimeter-radius range that contri…