Pitch-angle distribution of electrons measured by Wind/3DP/75–140 keV (1), Solar Orbiter/EPT/86–102 keV (2), and STEREO-A/SEPT/85–125 KeV (3). Panel descriptions: (a): Intensities observed by the each of the eight pitch-angle bins of the Wind/3DP (1); and of the centre of the four telescopes of Solar Orbiter/EPT (2) and STEREO/SEPT (3) (Sun in red, anti-Sun in orange, north in blue, and south in green). (b): Pitch-angle coverage of each field of view; (c): Pitch-angle distribution with colour-coded intensities. (d): first-order anisotropy values, in the range [−3, 3] (e.g. Dresing et al. 2014). The top left panel shows the longitudinal spacecraft constellation and nominal connectivity at 05:58 UT on 2022 January 20.