Herringbone dynamic spectrum and their fluxes obtained from NRH images. (a) ORFEES dynamic spectrum during the herringbone event. (b) Zoom-in of the top panel focussing on groups of herringbones. The last three panels show the flux of the herringbone sources together with the relative intensity extracted from the ORFEES dynamic spectrum at three frequencies: 173 (c), 228 (d), and 270 MHz (e). These plots show that the radio sources imaged by the NRH are indeed the herringbone bursts seen in the ORFEES dynamic spectrum.