The 9th OpenSky Symposium

18/19 November 2021 at EUROCONTROL in Brussels, Belgium


Note: All times are CET (UTC+01:00)

Wednesday, 17/11/2021
14:00 - 17:00
Hands-on tutorial: OpenSky trajectory analysis with traffic
Xavier Olive
Optional, on-site only, limited to 10 participants. sign up .
Thursday, 18/11/2021
09:00 - 09:10
Opening words
09:10 - 09:50
Welcome and Vision for Open Performance Data
José-Manuel Cordero-Garcia and Peter Whysall (Performance Review Commission)

Keynote: ADS-B Data Fusion
Patrick Tasker and Andrew Simpson (EUROCONTROL)
10:00 - 12:15
Session: OpenSky for Data Science Chair: Junzi Sun
10:00 - 10:30
I know where you are going: Predicting Flight Destinations of Corporate and State Aircraft [8]
Marc Jourdan, Karolis Martinkus, David Roschewitz, and Martin Strohmeier
10:30 - 11:00
Synthetic aircraft trajectories generated with multivariate density models [5]
Timothé Krauth, Xavier Olive, Jérôme Morio, Benoit Figuet, and Raphael Monstein
Short break
11:15 - 11:45
On the use of Deep Neural Networks to improve flights estimated time of arrival predictions [17]
Jorge Silvestre, Miguel de Santiago, Anibal Bregon, Miguel A. Martínez-Prieto, and Pedro C. Álvarez
11:45 - 12:15
Reference Trajectories: The Dataset Enabling Gate-To-Gate Flight Analysis
John Fitzgerald, Enrico Spinielli, Allan Tart, and Rainer Koelle
12:15 - 13:30
Lunch break
13:30 - 15:45
Session: OpenSky for Air Traffic Management Chair: Xavier Olive
13:30 - 14:00
Helicopter Flight Manoeuvre Statistics via ADS-B: An Initial Investigation using the OpenSky Network [7]
Joshua Hoole, Julian Booker and Jonathan Cooper
14:00 - 14:30
Automatic processing pipeline for collecting and annotating air-traffic voice communication data [13]
Martin Kocour, Karel Veselý, Santosh Kesiraju, Jan Černocký, Juan Zuluaga-Gomez, et al.
Short break
14:45 - 15:15
Comparison of the Sequencing and Merging Procedures at Arlanda, Dublin and Vienna Airports Using Opensky Data [10]
Lucie Smetanová, Tatiana Polishchuk, Anastasia Lemetti, and Henrik Hardell
15:15 - 15:45
Characterizing Terminal Airspace System Spatial States and Detecting System-Level Anomalies [6]
Samantha Corrado, Tejas Puranik, and Dimitri Mavris
Session break
16:15 - 17:45
Session: OpenSky and Signals Chair: Martin Strohmeier
16:15 - 16:45
Aircraft localization using ATC data with nanosecond precision from distributed crowdsourced receivers [4]
Sergei Markochev
16:45 - 17:15
ADS-B Signal Verification Using a Coherent Receiver [22]
Wouter Huygen, Junzi Sun, and Jacco Hoekstra
17:15 - 17:45
Multi-Domain Detection and Attribution of GNSS Interference [11]
Jake Glass and Max Weeden
Friday, 19/11/2021
08:50 - 09:00
Opening words
09:00 - 09:45
Keynote: Leveraging large constellation of nanosatellites for Aviation and ATM: The evolution ADS-B payload and operation
David Manda and Philip Plantholt (Spire)
10:00 - 11:30
Session: OpenSky for Environmental Analysis Chair: Rainer Koelle
10:00 - 10:30
Using OpenSky ADS-B Data to Estimate Aircraft Emissions [2]
Antonio Filippone and Ben Parkes
10:30 - 11:00
Evaluation of Aviation Emissions and Environmental Costs in Europe Using OpenSky and OpenAP [20]
Junzi Sun and Irene Dedoussi
11:30 - 12:00
Viability of OpenSky data to estimate global aviation emissions
Flávio Quadros, Mirjam Snellen, Junzi Sun, and Irene Dedoussi
Session break
11:45 - 12:30
Demo session
12:30 - 13:30
Lunch break
13:30 - 14:30
Session: OpenSky for Noise Analysis Chair: Allan Tart
13:30 - 14:00
Data-Driven Analysis of Departure Procedures for Aviation Noise Mitigation [12]
Jirat Bhanpato, Tejas Puranik, and Dimitri Mavris
14:00 - 14:30
A System for Measurement and Analysis of Aircraft Noise Impacts [14]
Donald C Jackson, Thomas C Rindfleisch, and Juan J Alonso
14:30 - 15:00
Keynote: Insights into OpenSky network
Martin Strohmeier
15:00 - 15:30
Closing remarks


Since its launch in 2013, the OpenSky Network has quickly evolved to a large-scale air traffic control data collection and sharing platform. With more than 4000 sensors registered across the globe and more than 25000 users, the OpenSky Network is greatly contributing towards the vision of a more efficient, secure, and reliable operation of the airspace by providing open accessibility of air traffic control data to the public.

Following the successful events in past years, we are proud to announce the Ninth OpenSky Symposium. The two-day event will be hosted by EUROCONTROL in their headquarters in Brussels (Belgium) in November 2021 and is sponsored by the Performance Review Commission (PRC) of EUROCONTROL. The PRC aims to establish an Open Performance Data platform available in cooperation with Opensky Network and its community.

The event is targeted at anyone interested in data-based aviation research. The Symposium will serve as a forum to discuss new ideas, the network itself, and research activities around OpenSky. Participants are invited to actively contribute to the program by presenting their projects at the Symposium. In the past years, the symposium attracted a diverse and interesting audience from research, authorities, and industry.

Depending on the situation of the COVID-19 pandemic, we hope to have a hybrid format with possibilities of both on-site and online presence. There will be many opportunities to get to know the community during the social activities around the Symposium program.

The websites of previous workshops can be found here:

Submission Guidelines

Authors can submit their abstracts and papers at:

The submissions consist of:

  1. Abstract: submissions describing the idea of the work and presentation that will be given at the symposium. Abstracts should have a length of 1-2 pages and are due by September 10, 2021, at 23:59 (UTC-12).
  2. Paper: submissions describing and explaining the work in more detail. Papers should be 6-9 pages long and are due by November 12, 2021.

Please ensure that your submissions are PDF files of a maximum of 2 pages (Abstract) and 9 pages (Papers), including references and appendices.

Submissions should closely follow the instructions given for the MDPI Proceedings template here. We recommend using Overleaf which includes MDPI article template files. Abstract submissions may be anonymous (i.e., papers do not contain author names or affiliations), but author names and affiliations must be part of the paper submissions.

The EasyChair system will be used for collecting submissions, providing reviewer feedback, and notifications. Please visit for further information.

Important Dates

Abstracts due September 3, 2021  September 10, 2021 (extended deadline)
Notification to authors October 1, 2021
Programme online October 8, 2021
Full papers due November 12, 2021
Symposium November 18-19, 2021


Program Chair (correspondence) Junzi Sun (TU Delft, Netherlands)
General Chairs Enrico Spinielli (EUROCONTROL, Belgium)
Rainer Kölle (EUROCONTROL, Belgium)
Web Chair Matthias Schäfer (SeRo Systems, Germany)
Registration Chair Allan Tart (OpenSky Network, Switzerland)
Program Committee Rainer Kölle (EUROCONTROL, Belgium)
Vincent Lenders (armasuisse, Switzerland)
Ivan Martinovic (University of Oxford, UK)
Xavier Olive (ONERA, France)
Rui Pinheiro (Skysquitter, Germany)
Fabio Ricciato (OpenSky Network, Switzerland)
Matthias Schäfer (SeRo Systems, Germany)
Michael Schultz (TU Dresden, Germany)
Enrico Spinielli (EUROCONTROL, Belgium)
Martin Strohmeier (armasuisse, Switzerland)
Junzi Sun (TU Delft, Netherlands)
Allan Tart (OpenSky Network, Switzerland)


To attend the conference in person, you must be able to show your valid COVID certificates (e.g, EU Digital COVID Certificate).

The registration fees are*:

Regular In-Person Attendance 250 Euros
Academics (please use an email with your affiliation) 150 Euros
Online Attendance 20 Euros


The symposium will take place at EUROCONTROL's Headquarters, Rue de la Fusée 96, Brussels 1130, Belgium.

EUROCONTROL is conveniently located next to Brussels airport. It is also well connected by tram, etc. For more details on how to reach EUROCONTROL, please refer to this document.

For COVID-19 measures at EUROCONTROL, please follow this guide: