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Table 1.

Overview of the three XMM-Newton observations of Vela X-1 with public data in the archive as of late 2024.

Obs ObsID Dates Duration (s) MJDs Orbital phase
1 0111030101 2000 Nov 02-03 59114 51850.580 51851.264 0.654–0.730
2 0406430201 2006 May 25-26 124310 53880.438 53881.877 0.090–0.251
3 0841890201 2019 May 03-05 114900 58606.885 58608.215 0.339–0.488

Notes. The orbital phases were obtained with the ephemeris in Table 4 from Kreykenbohm et al. (2008), using Porb = 8.964357 ± 0.000029 d and Tecl as time of phase zero.

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