EEJ, Ionosonde, TEC, and ROTI Data Associated with the 1 January 2025 Geomagnetic Storm

EEJ, ionosonde, TEC, and ROTI data associated with the strong geomagnetic storm on January 1, 2025. The dataset includes EEJ data from the American sector, ionosonde observations from Pontianak and Kupang, and TEC and ROTI data over the Indonesian region (90°E–150°E) with 10-minute intervals. These data were used to prepare the scientific manuscript titled "Storm-Time Penetration Electric Fields Driving Equatorial Plasma Bubble Formation Over Indonesia on 1 January 2025" by Suraina et al., which has been submitted to the journal JGR: Space Physics.