Table 1: XMM-Newton observation information. All observations are performed in Full Frame with the Thin Optical filter applied except in Rev. 175 where the Medium filter was used.

Rev.	Instrument	Epoch	Exposure
78	mos1	2000 May 13	48 ks
175	pn	2000 Nov. 21-22	23 ks
533	pn	2002 Nov. 6-7	26 ks
533	mos1	2002 Nov. 6-7	30 ks
534	pn	2002 Nov. 8-9	27 ks
534	mos1	2002 Nov. 8-9	32 ks
622	mos1	2003 May 2-3	24 ks
711	mos1	2003 Oct. 27-28	14 ks
815	pn	2004 May 22-23	22 ks
815	mos1	2004 May 22-23	26 ks
1086	pn	2005 Nov. 12-13	34 ks