GRB 241030A: detection of the optical afterglow – 31 Oct. 2025
We detected the optical afterglow of GRB 241030A, about 37 hours after the burst.
GRB 241030A: 31 Oct. 2024
On 30 Oct. 2024, at 05:48:03 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 241030A (trigger=1263718). This detection was reported via the Nasa’s GCN 37956 Circular. Later, an optical afterglow was detected.
On 31 October., at 18:28 UTC, 36,8 hours after the burst, we remotely slewed the “Elena” (PlaneWave 17″ + Paramount MEII + SBIG STL-6303E) robotic unit to the transient position, collecting 16, 300-second unfiltered exposures and then averaging them.
We clearly detected the optical counterpart of GRB 241030A.
The position of the source is RA: 22 52 33.52; Decl.: +80 26 59.5 (J2000.0, mean residuals of 0.15”, reference stars from GaiaDR2) and the magnitude was estimated to be 19.9 (SNR=5, assuming R mags for the reference stars from GaiaDR2).
We published a GCN circular (GCN 38031).
Back to “Gamma Ray Burst” Page
Support The Virtual Telescope Project!
Support us! Please, donate and celebrate the ARTEMIS II mission with an EXCLUSIVE and STUNNING digital hi-res image of the largest Supermoon of 2025 to download and frame on your wall and many more pictures, specifically made for supporters like you!
