7836 20260125234211.0 POSTER-2026-0029 Dominique, Marie Multi-Instrument Observations of the X9 Flare of 3 October 2024 2025 2025-10-27 3PRODSIDCEXPLOIT/ 3PRODSIDCEXPLOIT/ 3PRODSIDCEXPLOIT STCE Marqué, Christophe Martínez Picar, Antonio Berghmans, David Bechet, Sabrina European Space Weather Week 2025, Umeå, Sweden marie.dominique@ksb-orb.be CPOSTER