Abstract
The Radiation Monitoring Investigation of the Juno Mission will actively retrieve and analyze the noise signatures from penetrating radiation in the images of Juno’s star cameras and science instruments at Jupiter. The investigation’s objective is to profile Jupiter’s \(>10\mbox{-MeV}\) electron environment in regions of the Jovian magnetosphere which today are still largely unexplored. This paper discusses the primary instruments on Juno which contribute to the investigation’s data suite, the measurements of camera noise from penetrating particles, spectral sensitivities and measurement ranges of the instruments, calibrations performed prior to Juno’s first science orbit, and how the measurements may be used to infer the external relativistic electron environment.
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Acknowledgements
The authors would like to thank Jay St. Pierre, Kristen Francis, Christopher Voth, Doug Niebur, Jeffrey Lewis, Jennifer Delavan, and William Fehringer of the Lockheed Martin Juno GN&C and Spacecraft Teams for their significant support in the command architecture development for RM’s SRU Image collection for radiation measurements. Alessandro Bini, Marco Lastri, and Maurizio Rossi of the Selex Galileo (now Leonardo Finmeccanica S.p.A.) JIRAM Team are thanked for their contributions to the development and operation of the JIRAM instrument. We acknowledge the NASA Van Allen Probes and Joseph Mazur (Aerospace Corporation) for use of data discussed here. Karen Willacy is thanked for her contributions to our early calibration work. We express our appreciation for the involvement and encouragement of the late Prof. Angioletta Coradini during the early stages of this work. This work was sponsored by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. The JIRAM Project is funded by the Italian Space Agency. © 2016. All rights reserved.
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Becker, H.N., Alexander, J.W., Adriani, A. et al. The Juno Radiation Monitoring (RM) Investigation. Space Sci Rev 213, 507–545 (2017). https://doi.org/10.1007/s11214-017-0345-9
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DOI: https://doi.org/10.1007/s11214-017-0345-9