STARITHM
Strong FRB detected by CHIME with high SNR and well-constrained dispersion measure
AI Summary
CHIME/FRB Real-time Search Pipeline detected Fast Radio Burst 1182418277 on 2026-10-18 at 17:12:34 UTC with exceptional signal-to-noise ratio of 120.7. The burst exhibits a dispersion measure of 698.35 ± 0.40 pc/cm³, significantly exceeding the maximum Galactic contribution (37.33 pc/cm³), confirming extragalactic origin. Localized to RA 164.25°, Dec 67.03° with 0.62° positional uncertainty across the 400-800 MHz band. No follow-up observations or additional circulars have been reported at this time.
Measurements
| Event ID | 1182418277 |
|---|---|
| Source | CHIME |
| Alert type | FRB |
| Significance | medium |
| Trigger time (UTC) | Sun, 18 Oct 2026 17:12:34 GMT |
| Right ascension (J2000) | 164.2541957° |
| Declination (J2000) | 67.0344898° |
| Dispersion measure | 698.3543701 pc/cm³ |
| SNR | 120.6800919 |
| GCN notices | 1 |
| GCN circulars | 0 |
Notices (1)
CHIME — FRB · Sun, 18 Oct 2026 17:12:34 GMT
AI summary generated Sun, 18 Oct 2026 17:31:57 GMT.