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Table 1

CRSF centroid energy Ecyc measured with Swift/BAT in Her X-1 since the beginning of the Swift operation.

MJD start MJD end Ecyc [keV]

53 440 53 580
53 610 53 750
53 790 54 030
54 070 54 210
54 240 54 450
54 480 54 590
54 620 54 970
55 010 55 150
55 180 55 320
55 360 55 530
55 570 55 740
55 780 55 920
55 950 56 090
56 120 56 260
56 300 56 470
56 510 56 610
56 650 56 790
56 820 57 030

Notes. The quoted uncertainties are at 1σ confidence level.

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