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Jupiter Probability Tool V1.0

Thursday 25 May 2023, by Baptiste Cecconi

This online tool provides users with Jovian radio emission observability predictions, depending on the observers location, and the radio emission class. It is described in details in Cecconi et al. (2023).

Link to resources


Jupiter is a source of intense radio emissions in the decametric wavelength range observable from ground (above 10 MHz) and from space (down to a few kHz). The strong anisotropy of the Jovian radio sources results in characteristic shapes in the temporal-spectral domain, which can be used to identified the various types of Jovian radio components. The Jupiter Probability Tool provides users with Jovian radio emission observability predictions, depending on the observers location, and the radio emission class. The application can be used for observation planning or data analysis for ground or space observations.

The tool uses previously published Phase-CML maps [Marques et al, 2017; Leblanc et al, 1993; Zarka et al, 2018a,b; Louis et al, 2017; Jácome et al. 2022], all gathered in Lamy et al [2022]. It also displays data from ExPRES [Louis et al, 2019, 2020] and from Nançay Decameter Array [Lamy et al, 2017, 2021]. It is relying on a local WebGeoCalc instance [Acton et al, 2018] for ephemeris computation.


This public tool was developed by the NDA team in the frame of the MASER service supported by Paris Astronomical Data Centre (PADC) at Observatoire de Paris. Please include appropriate acknowledgements and relevant references for any public or scientific use.

This work has been supported by the Europlanet 2024 Research Infrastructure project, which has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 871149.


Any question or request should be addressed to contact.maser@obspm.fr


  • Acton, C., Bachman, N., Semenov, B., and Wright, E. (2018). A look towards the future in the handling of space science mission geometry. Planet. Space Sci. 150, 9–12. https://doi.org/10.1016/j.pss.2017.02.013
  • Cecconi, B., S. Aicardi & L. Lamy (2023) Jupiter radio emission probability tool. Front. Astron. Space Sci. 10, 1091967. https://doi.org/10.3389/fspas.2023.1091967
  • Jácome, H. R. P., M. S. Marques, P. Zarka, E. Echer, L. Lamy and C. K. Louis (2022) Search for Jovian decametric emission induced by Europa on the extensive Nançay Decameter Array catalog Astronomy & Astrophysics, 665, A67 https://doi.org/10.1051/0004-6361/202244246
  • Lamy, L., P. Zarka, B. Cecconi, L. Klein, S. Masson and L. Denis and A. Coffre (2017) 1977-2017 : 40 years of decametric observations of Jupiter and the Sun with the Nançay decameter array in Planet. Radio Em. VIII, edited by G. Fischer et al., Austrian Academy of Sciences press, Vienna, 455–466 https://doi.org/10.1553/pre8s455
  • Lamy, L., A. Le Gall, B. Cecconi, A. Loh, P. Renaud, L. Denis, A. Coffre, P. Zarka and A. Lecacheux (2021) Nançay Decameter Array (NDA) Jupiter Routine observation data collection (Version 1.7) [Data set]. PADC/CDN https://doi.org/10.25935/DV2F-X016
  • Lamy, L., B. Cecconi and S. Aicardi (2022) Collection of Jovian Radio Emission Probability and Occurrence Maps (Version 1.0) PADC/MASER https://doi.org/10.25935/1ZBG-EK27
  • Leblanc, Y., et al (1993) A catalogue of Jovian decametric radio observations from January 1978 to December 1990 Astronomy & Astrophysics, 98, 529-546
  • Louis, C. K., L. Lamy, P. Zarka, B. Cecconi and and S. L. Hess (2017) Detection of Jupiter decametric emissions controlled by Europa and Ganymede with Voyager/PRA and Cassini/RPWS J. Geophys. Res. Space Physics, 122 https://doi.org/10.1002/2016JA023779
  • Louis, C. K., S. L. G. Hess, B. Cecconi, P. Zarka, L. Lamy, S. Aicardi and and A. Loh (2019) ExPRES: an Exoplanetary and Planetary Radio Emissions Simulator Astron. Astrophys., 627, A30 https://doi.org/10.1051/0004-6361/201935161
  • Louis, C. K., B. Cecconi and A. Loh (2020) ExPRES Jovian Radio Emission Simulations Data Collection (Version 01) [Data set]. PADC https://doi.org/10.25935/KPGE-ZB59
  • -* Marques, M. S., P. Zarka, E. Echer, V. B. Ryabov, M. V. Alves, L. Denis and and A. Coffre (2017) Statistical analysis of 26 years of observations of decametric radio emissions from Jupiter Astron. Astrophys., 604, A17 https://doi.org/10.1051/0004-6361/201630025
  • Zarka, P., M. S. Marques, C. Louis, V. B. Ryabov, L. Lamy, E. Echer and and B. Cecconi (2018a) Jupiter radio emission induced by Ganymede and consequences for the radio detection of exoplanets Astron. Astrophys., 618, A84 https://doi.org/10.1051/0004-6361/201833586
  • Zarka, P., M. S. Marques, C. Louis, V. B. Ryabov, L. Lamy, E. Echer and and B. Cecconi (2018b) Radio emission from satellite-jupiter interactions (especially Ganymede) Planetary Radio Emissions 8, Austrian academy press, 45-58 https://doi.org/10.1553/PRE8s45

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