TITLE:   GCN CIRCULAR
NUMBER:  42431
SUBJECT: GRB 251003A: VLA Detection
DATE:    25/10/24 22:49:01 GMT
FROM:    Sarah Chastain at University of New Mexico <sarahichastain@gmail.com>

S. I. Chastain (TTU) and A. J. van der Horst (GWU) report:

We carried out follow up observations of GRB 251003A, detected by Fermi (Fermi GBM Team, GCN 42069) and Swift (Beardmore et al., GCN  42070) with the Karl G. Jansky Very Large Array.
 
At 18 days post-burst (2025-10-21 06:04:43.725), we significantly detect the afterglow at 9 GHz at 40 +/- 5 microJy/beam at the location:

RA (J2000): 1:14:07.092 ± 0.003 seconds
Dec (J2000): 56:29:27.94 ± 0.05 arcseconds

These observations were taken as part of the Fermi GI project SF181025.  

We thank the VLA staff for scheduling and executing these observations.