Abstract
The JEM-EUSO telescope will detect Ultra-High Energy Cosmic Rays (UHECRs) from space, detecting the UV Fluorescence Light produced by Extensive Air Showers (EAS) induced by the interaction of the cosmic rays with the earth’s atmosphere. The capability to reconstruct the properties of the primary cosmic ray depends on the accurate measurement of the atmospheric conditions in the region of EAS development. The Atmospheric Monitoring (AM) system of JEM-EUSO will host a LIDAR, operating in the UV band, and an Infrared camera to monitor the cloud cover in the JEM-EUSO Field of View, in order to be sensitive to clouds with an optical depth τ ≥ 0.15 and to measure the cloud top altitude with an accuracy of 500 m and an altitude resolution of 500 m.
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Acknowledgments
This work was partially supported by Basic Science Interdisciplinary Research Projects of RIKEN and JSPS KAKENHI Grant (22340063, 23340081, and 24244042), by the ItalianMinistry of Foreign Affairs, General Direction for the Cultural Promotion and Cooperation, by the ’Helmholtz Alliance for Astroparticle Physics HAP’ funded by the Initiative and Networking Fund of the Helmholtz Association, Germany, and by Slovak Academy of Sciences MVTS JEM-EUSO as well as VEGA grant agency project 2/0076/13. The Spanish Consortium involved in the JEM-EUSO Space Mission is funded by MICINN under projects AYA2009- 06037-E/ESP, AYA-ESP 2010-19082, AYA2011-29489-C03- 01, AYA2012-39115-C03-01, CSD2009-00064 (Consolider MULTIDARK) and by Comunidad de Madrid (CAM) under project S2009/ESP-1496.
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The JEM-EUSO Collaboration., Adams, J.H., Ahmad, S. et al. The atmospheric monitoring system of the JEM-EUSO instrument. Exp Astron 40, 45–60 (2015). https://doi.org/10.1007/s10686-014-9378-1
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DOI: https://doi.org/10.1007/s10686-014-9378-1