TITLE:   GCN CIRCULAR
NUMBER:  21379
SUBJECT: GRB170714A: XMM observation of the afterglow
DATE:    17/07/29 08:33:11 GMT
FROM:    Luigi Piro at INAF  <luigi.piro@iaps.inaf.it>

B. Gendre (UVI, USA), L. Piro (IAPS/INAF, Italy), E. Troja (GSFC, USA), R. 
Ricci (INAF/IRA-Bologna), M. Wieringa (ATNF,CSIRO), K. Bannister 
(ATNF,CSIRO) report:

We observed the field of GRB 170714A (D'Ai et al., GCN 21340) with 
XMM-Newton between 370,993 and 506,293 seconds post-trigger under our XMM 
program on ultralong GRBs (PI: Piro).

The X-ray afterglow is clearly visible during the whole observation, at 
the position:

RA: 2h17m24.02s
DEC: +1d59'28.51"

with an error of 1.3" (statistic + systematic, 90% confidence),
consistent with the position of the optical counterpart (de Ugarte Postigo 
et al. GCN 21346) and of XRT (Evans et al. GCN 21341).

The observed mean X-ray flux(0.3-10 keV) is 3.7e-14 erg/s/cm2

We thank the ESA and XMM SOC staff for performing this TOO trigger.