On the geospace conditions in relation to the IntelSat-33e satellite fatal failure in October 2024

Authors:  Renato Gomes da Silva,  José Henrique Fernandez, Giuliani Paulineli Garbi
Cited by: 0

Abstract

The geostationary satellite IntelSat-33e experienced a catastrophic failure on October 19, 2024, resulting in the generation of approximately 500 debris fragments. This study examines the satellite anomaly in light of intense space weather conditions observed in the preceding days. A multi-parameter analysis was performed using geomagnetic indices (Dst, Kp and Ap), solar wind data from the OMNI database (IMF Bz, solar wind speed, and dynamic pressure), and high-energy electron fluxes (> 2 MeV) from GOES-16. The results indicate that spatial conditions began to change significantly after the arrival of solar wind shock fronts, evolving into a geomagnetic storm that began on October 6. A new, even more intense storm occurred on October 10. These events were driven by compound solar wind disturbances composed of coronal mass ejections followed by high-speed solar wind stream. Such combined drivers are known to enhance magnetospheric convection, substorm activity, and chorus/ULF wave generation, which in turn accelerateelectrons to relativistic energies within the outer radiation belt. This sustained high-radiation environment likely caused internal charging processes in the satellite, culminating in its fatal failure. These findings emphasize the need for real-time space weather monitoring, improved coronal mass ejections impact prediction, and resilient satellite designs for geosynchronous orbit missions.

Fields of Study & Subjects

Ionosphere and magnetosphere dynamics Solar and Space Plasma Dynamics Space Satellite Systems and Control

Publication details

Journal / source
Biblioteca Digital da Memória Científica do INPE (National Institute for Space Research)
Publication date
1 January 2026
Language
EN