TITLE:   GCN CIRCULAR
NUMBER:  38898
SUBJECT: GRB 250108A: Swift/XRT afterglow fading
DATE:    25/01/10 17:28:08 GMT
FROM:    Tullia Sbarrato at INAF-OAB <tullia.sbarrato@inaf.it>

Tullia Sbarrato (INAF-OAB) & Noel Klinger (GSFC/UMBC/CRESSTII)
report on behalf of the Swift-XRT team:

Swift-XRT has performed further follow-up observations of the
SVOM/ECLAIRs GRB 250108A (Zheng et al., GCN 38845), 
collecting 6.6 ks of Photon Counting (PC) mode data between 
T0+16.1 ks and T0+192.1 ks. 

The X-ray source detected in the first 2.7 ks of data reported as 
“Source 1” and presented as possible GRB afterglow candidate 
(Ambrosi et al., GCN 38853) has faded more than 2 sigma 
in the latest observation, and it is thus confirmed as the 
X-ray afterglow of the burst.

The results of the XRT-team automatic analysis are available at
http://www.swift.ac.uk/xrt_products/00021755.

This circular is an official product of the Swift-XRT team.