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GCN Circular 42240

Subject
GRB 20251013C: SLKT optical afterglow photometry
Event
GRB 202510
Date
2025-10-14T02:43:16Z (4 days ago)
From
Peter Garnavich at U of Notre Dame <pgarnavi@nd.edu>
Via
Web form
P. Garnavich (University of Notre Dame) reports:

The Sarah L. Krizmanich Telescope (SLKT) obtained unfiltered observations of the SVOM/ECLAIRs source
GRB 251013C (Rakotondrainibe et al., GCN 42222). Imaging was centered at 2025 October 14.002 (UT) which was 6.4 hours after the GRB trigger.  Exposures totaled 320s and the afterglow was clearly detected.

Compared to the nearby star at  23:03:20.64 -00:10:13.8 (2000) with a SDSS magnitude of r=14.40 mag,
the afterglow had a brightness of r=17.48+/-0.06 mag.
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