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Table 2.
Overview of the catalogue of unique sources in spatially overlapping XMM-Newton observations, selected from the 3XMM-DR7 observations taken between 2000 February 3 and 2016 December 15.
| Description | Number |
|---|---|
| Number of stacks | 434 |
| Number of observations | 1 789 |
| Time span first to last observation | Feb 20, 2000 |
| −Apr 02, 2016 | |
| Approximate sky coverage | 150 sq. deg. |
| Approximate multiply observed sky area | 100 sq. deg. |
| Total number of sources | 71 951 |
| Sources with several contributing observations | 57 665 |
| Sources with one contributing observation | 14 286 |
| Sources with flag “0” or “1” | 69 526 |
| Total detection likelihood of at least six | 64 221 |
| Total detection likelihood of at least ten | 53 492 |
| Extended sources (radius ≥6″) | 3 346 |
| Point sources with VAR_PROB≤1% | 5 607 |
| Point sources with VAR_PROB≤10−5 | 1 927 |
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