GCN Circular 37986
Subject
GRB 241030B: AKO Optical Afterglow Detection
Date
2024-10-30T19:37:04Z (2 months ago)
From
Mohammad Odeh at Al Khatim Observatory M44 <mshodeh@gmail.com>
Via
legacy email
Mohammad Odeh (Al-Khatim Observatory, AKO, operated by the International
Astronomical Center in Abu Dhabi, UAE), and Shaikha Alshamsi, Nuha Manal
Pattani, and Nidhal Guessoum (American University of Sharjah, UAE), report:
We observed the field of GRB 241030B detected by Fermi/GBM (Fermi GBM team,
GCN 37980), Swift/BAT (Klingler et al., GCN 37981), and SVOM/ECLAIRs (Zhao
et al., GCN 37984), with our 0.36m f/7.7 robotic telescope. The observation
started on 30 October 2024 at 18:58 (UT), 24 minutes from the trigger.
We obtained multiple 180-sec exposures in Ic filter. We detected the optical
afterglow at:
R.A. (J2000): 03:23:10.26
Dec. (J2000): +34:26:50.1
Our detection is consistent with the results of (Fu et al., GCN 37985).
The following observation was calculated using Atlas catalogue as a
reference:
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ObsTime (mid), Exposure (sec), Filter, Mag
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2024-10-30T19:08:23Z, 7x180s (stacked), Ic, 18.9 +/- 0.26
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The magnitude is not corrected for galactic extinction.