The Atmospheric Monitoring System of the JEM-EUSO Space Mission
M. D. Rodriguez Frias, S. Toscano, E. Bozzo, L. del Peral, A. Neronov, and S. Wada

TL;DR
The paper describes the design and capabilities of the Atmospheric Monitoring System (AMS) for the JEM-EUSO space mission, which aims to detect ultra-high energy cosmic rays and requires precise atmospheric measurements.
Contribution
It introduces a novel AMS with space-qualified infrared camera and LIDAR, providing detailed cloud and atmospheric data to improve cosmic ray measurements from space.
Findings
AMS can measure cloud cover and top altitude with 500 m accuracy.
It achieves energy measurement accuracy better than 30%.
A new radiometric retrieval technique for cloud height is under development.
Abstract
An Atmospheric Monitoring System (AMS) is a mandatory and key device of a space-based mission which aims to detect Ultra-High Energy Cosmic Rays (UHECR) and Extremely-High Energy Cosmic Rays (EHECR) from Space. JEM-EUSO has a dedicated atmospheric monitoring system that plays a fundamental role in our understanding of the atmospheric conditions in the Field of View (FoV) of the telescope. Our AMS consists of a very challenging space infrared camera and a LIDAR device, that are being fully designed with space qualification to fulfil the scientific requirements of this space mission. The AMS will provide information of the cloud cover in the FoV of JEM-EUSO, as well as measurements of the cloud top altitudes with an accuracy of 500 m and the optical depth profile of the atmosphere transmittance in the direction of each air shower with an accuracy of 0.15 degree and a resolution of 500 m.…
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