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Table 1

Public Chandra observations used in the analysis.

Obs Exposure Cleaned RA Dec Angle
ID [ks] [ks] [deg] [deg] [deg]

3392 167.0 166.0 266.419 −29.004 75.5
3393 160.1 157.7 266.420 −29.004 75.5
3665 91.1 89.7 266.420 −29.004 75.5
5953 46.0 45.1 266.415 −29.012 275.3
10 556 114.0 112.2 266.416 −29.000 79.0
11 843 80.0 78.8 266.415 −29.000 80.7
13 438 67.0 66. 0 266.502 −28.979 275.8

Total 825.0 750.6

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