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Table 2
Log of the Chandra and XMM-Newton X-ray observations.
| Source name | Satellite | Instrument | Start date | Obs. ID | Net exposure-time |
| (ks) | |||||
|
|
|||||
| NGC-266 | Chandra | ACIS-S | 2001 June 01 | 1610 | 2.0 |
| NGC-315 | Chandra | ACIS-S | 2000 October 08 | 855 | 4.7 |
| Chandra | ACIS-S | 2003 February 22 | 4156 | 55.0 | |
| XMM-Newton | EPIC | 2005 July 02 | 0305290201 | 13.2/23.2/23.2b | |
| NGC-2681 | Chandra | ACIS-S | 2001 January 30 | 2060 | 80.9 |
| Chandra | ACIS-S | 2001 May 02 | 2061a | 79.0 | |
| NGC-2787 | Chandra | ACIS-S | 2004 May 18 | 4689 | 30.8 |
| XMM-Newton | EPIC | 2004 October 10 | 0200250101 | 14.2/28.5/28.0b | |
| NGC-3226 | Chandra | ACIS-S | 1999 December 30 | 860 | 46.6 |
| Chandra | ACIS-S | 2001 march 23 | 1616 | 2.2 | |
| XMM-Newton | EPIC | 2002 March 29 | 0101040301 | 30.5/36.9/36.9 | |
| XMM-Newton | EPIC | 2008 January 09 | 0400270101 | 94.3b | |
| NGC-3718 | Chandra | ACIS-S | 2003 February 08 | 3993 | 4.9 |
| XMM-Newton | EPIC | 2004 May 02 | 0200430501a | 9.6 | |
| XMM-Newton | EPIC | 2004 November 04 | 0200431301a | 8.8 | |
| NGC 3998 | Chandra | ACIS-S | 2006 July 01 | 6781 | 13.6 |
| XMM-Newton | EPIC | 2001 May 09 | 0090020101 | 8.9/12.5/12.5 | |
| NGC 4143 | Chandra | ACIS-S | 2001 March 26 | 1617 | 2.5 |
| XMM-Newton | EPIC | 2003 November 22 | 0150010601a | 9.3/11.9/11.9 | |
| NGC-4203 | Chandra | ACIS-S | 2009 March 10 | 10535a | 41.6 |
| NGC-4278 | Chandra | ACIS-S | 2005 February 02 | 4741 | 37.5 |
| Chandra | ACIS-S | 2006 March 16 | 7077 | 110.3 | |
| Chandra | ACIS-S | 2006 July 25 | 7078 | 51.4 | |
| Chandra | ACIS-S | 2006 October 24 | 7079 | 105.1 | |
| Chandra | ACIS-S | 2007 February 20 | 7081 | 110.7 | |
| Chandra | ACIS-S | 2007 April 20 | 7080 | 55.8 | |
| XMM-Newton | EPIC | 2004 May 23 | 205010101 | 30.3/35.2/35.2 | |
| NGC-4750 | Chandra | ACIS-S | 2003 August 27 | 4020 | 4.9 |
| NGC-4772 | Chandra | ACIS-S | 2003 February 14 | 3999a | 4.7 |
| NGC-5005 | Chandra | ACIS-S | 2003 August 19 | 4021 | 4.9 |
| XMM-Newton | EPIC | 2002 December 12 | 0110930501 | 8.7/13.1/13.1 | |
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