CHIME detects FRB 1181002318 with high significance and high dispersion measure

AI Summary

The CHIME/FRB Real-time Search Pipeline detected a fast radio burst (FRB) on 2026-10-09 at 18:09:43.153 UTC with an importance score of 0.9999, indicating high confidence in the detection. The burst exhibits a dispersion measure of 837.46 pc/cm³ (±0.40), suggesting an extragalactic origin at a considerable distance. The event was observed across the 400-800 MHz band with a signal-to-noise ratio of 15.1 and localized to RA 171.33°, Dec 28.45° with a positional uncertainty of ~0.52°. No follow-up observations or additional circulars have been reported at this time.

Measurements

Notices (1)

CHIME — FRB · Fri, 09 Oct 2026 18:09:43 GMT