Notes. Each horizontal line denotes a prolonged gap between observations, within which flip-flop properties could not be accurately identified. Two horizontal lines distinguish the early from the late flip-flops. Fluxes are determined in the 3–79 keV range from the NuSTAR FPMA spectra, and are expressed in units of 10⁻⁹ erg cm⁻² s⁻¹. State durations are calculated based on the first and last measurement performed by NuSTAR, XMM-Newton, or Astrosat, that can be confidently associated with this state. The time of the centre of transition, and its duration were calculated using Eq. (1) on the NuSTAR light curves, restricted to be within 100 s before the start of the transition, and 100 s after the end of the transition. For the late flip-flops, we restricted the region of the light curve to be fitted, to 200 s before the start, and 200 s after the end of the transition. When transitions were not seen by NuSTAR, we instead calculated the transition times from the XMM-Newton light curves. The symbols ^(†) and ^(*) denote transition times calculated from the XMM-Newton Timing and Burst mode light curves, respectively. Transition times calculated from XMM-Newton Burst mode light curves are less reliable estimates and are therefore significantly larger. Blank cells indicate states or transitions for which certain properties could not be determined reliably.