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Eight research papers developed by the Instituto de Radioastronomía (INRAS) of the Pontificia Universidad Católica del Perú (PUCP) were presented at the 17th International Symposium on Equatorial Aeronomy (ISEA 17), one of the leading international meetings dedicated to the study of the upper atmosphere and the equatorial ionosphere.
The symposium was held from February 9 to 13, 2026, in Liberia, Costa Rica, and was hosted by the Universidad de Costa Rica.
This event brings together researchers in atmospheric science, ionospheric physics, and magnetospheric studies to share new findings, discuss the current state of knowledge, and outline future research directions.
Scientific Contributions from INRAS
The INRAS delegation presented eight scientific studies, highlighting advances in the development of the J-ARGUS project in Peru, research on equatorial ionospheric dynamics, and the application of innovative methodologies based on numerical modeling and artificial intelligence. The presented works were:
• Marco Milla (Director of INRAS): Designing an incoherent scatter radar experiment for the J-ARGUS system in Peru.
• Carla Arce: LWA Antenna Module Phase Calibration and UV-coverage analysis for the J-ARGUS System.
• David Torres: Sparse Array Design for the J-ARGUS Receiver Stations in Peru.
• Jhonell Fernández: Mutual Coupling Analysis of the New Receiving Stations in the J-Argus Project.
• Sebastián Huerta (presented by Gonzalo Tineo): Development of an SDR Ionosonde using Red Pitaya SIGNALlab 250-12 board.
• Susan Palacios: Climatology study of equatorial spread-F morphology across Solar Cycles 23 & 25 (1999 & 2022) using U-Net.
• Eduar Vásquez: A comparison of SDE solvers for computing single-particle autocorrelation functions in a machine-learning-based incoherent scatter spectral model.
• Roberto Flores: Tidal analysis of ExB vertical drifts based on measurements with the new JULIA-MP mode at Jicamarca.
• Alfonso Ugarte: Analysis of 150-km echoes measured with the Jicamarca radar for characterization based on spectral parameters.
International Projection and Scientific Integration
INRAS’s participation in ISEA 17 not only enabled the dissemination of recent results, but also strengthened collaboration networks with international groups specializing in equatorial aeronomy, incoherent scatter radars, and ionospheric monitoring.
At a highly specialized symposium such as ISEA, the presentation of advances from the J-ARGUS project proved strategic in showcasing the development of scientific and technological capacities in Peru, particularly in the design and implementation of ionospheric observation infrastructure.
Furthermore, technical exchanges with researchers from different countries open opportunities for future collaborations, methodological validation, and integration with global observation networks.
Through this participation, INRAS consolidates its presence in high-level scientific forums and continues to position PUCP as a relevant actor in equatorial ionosphere research and in the development of advanced scientific instrumentation in the region.