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The Solar Orbiter mission completed its first remote-sensing observationwindows in the spring of 2022. On 2/4/2022, an M-class flare followed by afilament eruption was seen both by the instruments on board the mission andfrom several observatories in Earth's orbit. The complexity of the observedfeatures is compared with the predictions given by the standard flare model in3D. We use the observations from a multi-view dataset, which includes EUVimaging to spectroscopy and magnetic field measurements. These data come fromIRIS, SDO, Hinode, as well as several instruments on Solar Orbiter. Informationgiven by SDO/HMI and Solar Orbiter PHI/HRT shows that a parasitic polarityemerging underneath the filament is responsible for bringing the flux rope toan unstable state. As the flux rope erupts, Hinode/EIS captures blue-shiftedemission in the transition region and coronal lines in the northern leg of theflux rope prior to the flare peak. Solar Orbiter SPICE captures the wholeregion, complementing the Doppler diagnostics of the filament eruption.Analyses of the formation and evolution of a complex set of flare ribbons andloops show that the parasitic emerging bipole plays an important role in theevolution of the flaring region. While the analysed data are overall consistentwith the standard flare model, the present particular magnetic configurationshows that surrounding magnetic activity such as nearby emergence needs to betaken into account to fully understand the processes at work. This filamenteruption is the first to be covered from different angles by spectroscopicinstruments, and provides an unprecedented diagnostic of the multi-thermalstructures present before and during the flare. This dataset of an eruptiveevent showcases the capabilities of coordinated observations with the SolarOrbiter mission.

A multiple spacecraft detection of the 2 April 2022 M-class flare and filament eruption during the first close Solar Orbiter perihelion