TITLE:   GCN CIRCULAR
NUMBER:  28449
SUBJECT: Swift-XRT observations of IceCube 200916A
DATE:    20/09/18 01:20:23 GMT
FROM:    Timothee Gregoire at Penn State  <tmg5746@psu.edu>

T. Gregoire (PSU), P.A. Evans (U. Leicester), J.A. Kennea (PSU), H. A. Ayala Solares (PSU), D.F. Cowen (PSU), J. DeLaunay (PSU) , D. B. Fox (PSU), A. Keivani (Columbia U.), J.P. Osborne (U. Leicester) report:

Swift observed the field of IceCube 200916A (GCN Circ. 28433) between 20:59:50 2020 September 16 and 01:26:43 on 2020 September 17, collecting a total of 3.7 ks of cleaned photon counting (PC) mode data. The observations used a 4-point tiling pattern with a radius of ~0.3 degrees.

We found no X-ray sources.

The 3-sigma upper limit in the field was in the range 5-8 x10^-3 ct/sec.