[vsnet-grb-info 17076] Swift Trigger 657564: XRT prompt analysis

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  18391
SUBJECT: Swift Trigger 657564: XRT prompt analysis
DATE:    15/10/04 20:15:04 GMT
FROM:    Claudio Pagani at U of Leicester  <cp232 at star.le.ac.uk>

C. Pagani (U. Leicester), P. A. Evans (U. Leicester) and S. B. Cenko (GSFC) report on behalf of the Swift-XRT Team:

The XRT began observing the field of the possible GRB 151004A (Swift trigger 657564, Cenko et al., GCN Circ. 18389) at 19:09:14.0 UT, 3609.3 seconds after the BAT trigger. No source was detected in 1.1 ks of promptly downlinked data, which covered 84% of the BAT error circle. We are waiting for the full dataset to detect and localise any possible XRT
counterpart.

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