## Motivation The data in this dataset is derived and cleaned from the full OpenSky dataset to illustrate the development of air traffic during the COVID-19 pandemic. It spans all flights seen by the network's more than 2500 members between 1 January 2020 and 1 April 2020. More data will be periodically included in the dataset until the end of the COVID-19 pandemic. ## Disclaimer The data provided in the files is provided as is. Despite our best efforts at filtering out potential issues, some information could be erroneous. - Origin and destination airports are computed online based on the ADS-B trajectories on approach/takeoff: no crosschecking with external sources of data has been conducted. Fields **origin** or **destination** are empty when no airport could be found. - Aircraft information come from the OpenSky aircraft database. Fields **typecode** and **registration** are empty when the aircraft is not present in the database. ## Description of the dataset One file per month is provided as a csv file with the following features: - **callsign**: the identifier of the flight displayed on ATC screens (usually the first three letters are reserved for an airline: AFR for Air France, DLH for Lufthansa, etc.) - **number**: the commercial number of the flight, when available (the matching with the callsign comes from public open API) - **icao24**: the transponder unique identification number; - **registration**: the aircraft tail number (when available); - **typecode**: the aircraft model type (when available); - **origin**: a four letter code for the origin airport of the flight (when available); - **destination**: a four letter code for the destination airport of the flight (when available); - **firstseen**: the UTC timestamp of the first message received by the OpenSky Network; - **lastseen**: the UTC timestamp of the last message received by the OpenSky Network; - **day**: the UTC day of the last message received by the OpenSky Network. ## Examples Possible visualisations and a more detailed description of the data are available at the following page: ## Credit If you use this dataset, please cite the original OpenSky paper: Matthias Schäfer, Martin Strohmeier, Vincent Lenders, Ivan Martinovic and Matthias Wilhelm. "Bringing Up OpenSky: A Large-scale ADS-B Sensor Network for Research". In Proceedings of the 13th IEEE/ACM International Symposium on Information Processing in Sensor Networks (IPSN), pages 83-94, April 2014. and the traffic library used to derive the data: Xavier Olive. "traffic, a toolbox for processing and analysing air traffic data." Journal of Open Source Software 4(39), July 2019.