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JNO J JED 3 CDR V1.0

Published by National Aeronautics and Space Administration | National Aeronautics and Space Administration | Metadata Last Checked: September 14, 2025 | Last Modified: 2025-07-17
Abstract ======== This data set consists of the JUNO JEDI (Jupiter Energetic-Particle Detector) calibrated observations, also known as CDRs. The system is made up of 3 instrument subsystems (pucks) aligned in three directions on the spinning JUNO spacecraft. The pucks each have 6 look directions (telescopes) with a time of flight (TOF) and a deposited energy detection (SSD) system. In addition, the pulse height of the signal in the TOF system can be used for energy measurement. The instruments can be operated in a variety of modes, differing in the way they use and combine these measurements. More details are available in the INSTRUMENT.CAT file and the JEDI SIS. The CDRs are organized in files covering one day of spacecraft event time (SCET). There are potentially 10 different files per puck, corresponding to the available data gathering modes: HIERSESP, HIERSISP, HIERSTOFXER, HIERSTOFXPHR, LOERSESP, LOERSISP, LOERSTOFXER, LOERSTOFXPHR, NONPTOFXER, NONPTOFXPHR. Depending on how the pucks are operated, not all data types will be available for all pucks for any particular time range. All the measured quantities present in the uncalibrated data files (EDRs) are present here in three forms: counts per accumulation (the same numbers as in the EDRs), counts per second (this number may be corrected for instrument saturation and background), intensity (counts per second per steradian per cm2 per keV). Additional support quantities are also included for the convenience or enlightenment of the end user.

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