Coronal mass ejection followed by a prominence eruption and a plasma blob as observed by Solar Orbiter

On February 12, 2021 two subsequent eruptions occurred above the West limb, as seen along Sun-Earth line. The first event was a typical slow Coronal Mass Ejection (CME), followed $\sim 7$ hours later by smaller and collimated prominence eruption, originating Southward with respect to CME, plasma blob. These events were observed not only SOHO STEREO-A missions, but also suite of remote sensing instruments on-board Solar Orbiter (SolO). This work shows how data acquired Full Sun Imager (FSI), Metis coronagraph, Heliospheric (SoloHI) from SolO perspective can be combined study different source regions. Moreover, we show analyzed provide new information about solar eruptions. Different 3D reconstruction methods applied spacecraft including SolO. Images both channels in Visible Light (VL) H I Lyman$-\alpha$ line (UV) derive physical on expanding plasma. polarization ratio technique for time images VL channel. their region expansion intermediate corona. Thanks combination UV data, formation post-CME Current Sheet (CS) temperature gradient across blob propagating CS measured time. Application that, thanks four measurements, errors are reduced 5-7$\%, thus better constraining distribution