LESIA Observatoire de Paris-PSL CNRS vopdc cdpp Sorbonne Université cnes Université de Paris

JSON Implementation of Time-Frequency Radio Catalogues: TFCat

Monday 13 February 2023, by Baptiste Cecconi

TFCat (Time-Frequency Catalogue) is a data interchange format based on JSON. It defines several types of JSON objects and the manner in which they are combined to represent data about time-frequency features of a time spectrogram (a.k.a. dynamic spectrum), their properties, and their temporal and spectral extents.

Link to document

TFCat Specification version 1.0
TFCat Specification version 1.0

A up-to-date version is available online:


The authors acknowledge support from PADC and LESIA.

BC, AL and MBT were also supported EPN2024-RI. The Europlanet 2024 Research Infrastructure (EPN2024-RI) project 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


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