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Goldstone Radar Maps Fast-Spinning 60-Meter Asteroid During Safe Close Flyby

JPL’s refined orbit calculations confirm no threat from 2025 OW after detailed radar mapping of its shape and rotation.

Overview

  • Goldstone Solar System Radar captured 41 high-resolution images of asteroid 2025 OW during its July 28 flyby at 1.6 lunar distances.
  • Radar measurements reveal the 60-meter object has an irregular monolithic structure and spins once every 1.5–3 minutes.
  • Detailed observations reduced trajectory uncertainties and confirmed that 2025 OW’s July 28 approach is its closest for the foreseeable future.
  • JPL’s Center for Near-Earth Object Studies refined the asteroid’s orbit to rule out any imminent impact risk.
  • This successful tracking and characterization demonstrate the effectiveness of NASA’s planetary defense monitoring systems.