General information
SVOM/VT reports Target of Opportunity optical observations of EP260227a (GRB 260227A), detected by EP/WXT, starting 11.14 hours after the trigger. The optical counterpart is detected in two simultaneous VT channels.
Wavelength coverage
- X-ray: EP/WXT detection is referenced as the initial detection instrument.
- Optical: SVOM/VT detections in VT_B (400–650 nm) and VT_R (650–1000 nm).
- Radio: X-band data are mentioned as available, but no measurements are reported here.
No UV, near-IR beyond 1 micron, millimeter/sub-mm, gamma-ray, TeV, neutrino, or GW observations are mentioned in this circular.
Lightcurve and spectrum
| mid time (h) |
exposure |
band |
mag (AB) |
| 11.362 |
38×50 s |
VT_B |
21.9 ± 0.1 |
| 11.313 |
31×50 s |
VT_R |
21.3 ± 0.1 |
Redshift
What’s special vs typical