Asteroid 2026 JH2 To Make Close Earth Flyby Today. How Near Will It Get?
2026 JH2 was discovered only days before its encounter, on May 10, by astronomers at the Mount Lemmon Survey in Arizona
www.ndtv.comHere’s the latest on asteroid 2026 JH2 and its Earth flyby.
Core answer
- Asteroid 2026 JH2 performed a very close but safe flyby of Earth on May 18, 2026, passing at roughly 91,000 kilometers (about 56,600 miles) from the planet’s surface.
Key details and context
- Discovery and classification: JH2 was discovered just days before its close approach by the Mount Lemmon Survey in Arizona (an Apollo-class near-Earth asteroid) [sources noted in recent science coverage].
- Distance and timing: Closest approach occurred in the UTC window around May 18, with live observations and updates from major observatories and citizen science networks tracking its path in real time [press coverage across outlets in mid-May 2026].
- Size estimates: Estimates place JH2 at roughly 15–35 meters in diameter, consistent with “school-bus” scale asteroids described by observers and press reports [{multiple outlets}].
- Impact risk: Analyses consistently indicated no collision risk for Earth now or in the near future; the event served as a valuable close-passage observation opportunity for astronomers to refine tracking of small near-Earth objects.
- Public viewing: Several projects provided live or webcast observations of the encounter, enabling amateur and professional observers to watch the flyby as it happened.
What this means for planetary defense monitoring
- The event highlighted how small near-Earth objects can be detected only shortly before striking pass-by opportunities, underscoring ongoing efforts to improve detection windows and response plans with upcoming surveys and infrared space telescopes.
- It demonstrates the value of global coordination among observatories, space agencies, and citizen scientists to characterize objects that are difficult to track due to their size and brief visibility.
If you’d like, I can pull a concise, cited timeline of the event from reputable outlets and create a simple infographic-style summary (or a chart of distance vs. time) to illustrate the flyby. I can also provide a list of reputable sources for further reading.