CHIME detects Fast Radio Burst with DM 82.49 pc/cm³ at high significance
AI Summary
CHIME/FRB Real-time Search Pipeline detected FRB 1180884609 on 2026-10-09 at 01:25:10 UTC with a signal-to-noise ratio of 12.28 and high importance score (0.927). The burst was localized to RA 278.60°, Dec 46.19° with ~0.67° positional uncertainty, and exhibits a dispersion measure of 82.49±1.62 pc/cm³, suggesting an extragalactic origin. Observations were conducted in the 400-800 MHz band with dual polarization; no follow-up observations or human-written circulars are currently available for this event.
Measurements
| Event ID | 1180884609 |
|---|---|
| Source | CHIME |
| Alert type | FRB |
| Significance | medium |
| Trigger time (UTC) | Fri, 09 Oct 2026 01:25:10 GMT |
| Right ascension (J2000) | 278.5981136° |
| Declination (J2000) | 46.1910848° |
| Dispersion measure | 82.4923477 pc/cm³ |
| SNR | 12.2831097 |
| GCN notices | 1 |
| GCN circulars | 0 |
Notices (1)
CHIME — FRB · Fri, 09 Oct 2026 01:25:10 GMT
AI summary generated Fri, 09 Oct 2026 02:32:17 GMT.