Thales Alenia Space Achieves Key Milestone in the Development of Galileo Second Generation

Thales Alenia Space Achieves Key Milestone in the Development of Galileo Second Generation

Thales Alenia Space has reached another important milestone in the development of Galileo Second Generation with the successful completion of the Satellite Critical Design Review (SCDR) Board. With the unrelenting efforts of all participants, the SCDR was recently held after verifying the test and design progress. 

The final phase of the review got underway on March 18 in Rome with more than 120 participants present, including teams from Thales Alenia Space, the European Space Agency (ESA), the European Commission (EC) and the European Union Agency for the Space Programme (EUSPA), culminating in the final CDR Board held on the 17th of April at ESTEC premises, ESA’s technical center in the Netherlands.

Key achievements

  • Our teams in Rome worked tirelessly to meet the tight schedule of completing the review in four weeks.
  • Following successful testing of two structural models and their qualification for launch on Ariane 62, and the tests of the Engineering Model payload in a conducted and radiated configuration, a deck of around 1300 slides was put together to serve as the basis for the review.
  • This important milestone confirms the robustness of the design and technical capabilities of the Galileo Second Generation satellite being developed by Thales Alenia Space.

What’s next?

This achievement paves the way for the start of the flight model assembly and integration phase in Q4 2024. First Satellite Compatibility Test Campaigns with the Ground Segment are also expected by the end of 2024, in order to ensure full satellite acceptance in the years to come.


Galileo is currently the world’s most precise satellite navigation system, serving close to four billion users around the globe since entering Open Service in 2017. All smartphones sold in the European Single Market are now guaranteed Galileo-enabled. In addition, Galileo is making a difference across a variety of sectors including rail, maritime, agriculture, financial timing services, and rescue operations.

Galileo is a flagship program of the European Union, managed and funded by the European Commission. Since the program’s inception, ESA is leading the design, development, and qualification of the space and ground systems, as well as procuring launches. The EU Agency for the Space Program (EUSPA) is the service provider for Galileo, overseeing the market and application needs and closing the loop with users.

Thales Alenia Space was involved in every development phase of the first-generation Galileo system, in charge of system support, the Galileo Mission Segment, and the Galileo Security Facility. In 2021, their company was selected by ESA, acting for the European Commission, to build six of the 12 new satellites for the Galileo Second Generation sovereign constellation. In July 2023, they signed contracts with ESA and the Commission to design and build the Galileo Second Generation mission ground segment and to provide technical support for systems engineering with our European partners.

Click here to learn more about the Galileo Satellite Navigation System.

Publisher: SatNow
Tags:-  SatelliteLEOLaunchGround

GNSS Constellations - A list of all GNSS satellites by constellations


Satellite NameOrbit Date
BeiDou-3 G4Geostationary Orbit (GEO)17 May, 2023
BeiDou-3 G2Geostationary Orbit (GEO)09 Mar, 2020
Compass-IGSO7Inclined Geosynchronous Orbit (IGSO)09 Feb, 2020
BeiDou-3 M19Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M20Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M21Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 M22Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 I3Inclined Geosynchronous Orbit (IGSO)04 Nov, 2019
BeiDou-3 M23Medium Earth Orbit (MEO)22 Sep, 2019
BeiDou-3 M24Medium Earth Orbit (MEO)22 Sep, 2019


Satellite NameOrbit Date
GSAT0223MEO - Near-Circular05 Dec, 2021
GSAT0224MEO - Near-Circular05 Dec, 2021
GSAT0219MEO - Near-Circular25 Jul, 2018
GSAT0220MEO - Near-Circular25 Jul, 2018
GSAT0221MEO - Near-Circular25 Jul, 2018
GSAT0222MEO - Near-Circular25 Jul, 2018
GSAT0215MEO - Near-Circular12 Dec, 2017
GSAT0216MEO - Near-Circular12 Dec, 2017
GSAT0217MEO - Near-Circular12 Dec, 2017
GSAT0218MEO - Near-Circular12 Dec, 2017


Satellite NameOrbit Date
Kosmos 2569--07 Aug, 2023
Kosmos 2564--28 Nov, 2022
Kosmos 2559--10 Oct, 2022
Kosmos 2557--07 Jul, 2022
Kosmos 2547--25 Oct, 2020
Kosmos 2545--16 Mar, 2020
Kosmos 2544--11 Dec, 2019
Kosmos 2534--27 May, 2019
Kosmos 2529--03 Nov, 2018
Kosmos 2527--16 Jun, 2018


Satellite NameOrbit Date
Navstar 82Medium Earth Orbit19 Jan, 2023
Navstar 81Medium Earth Orbit17 Jun, 2021
Navstar 78Medium Earth Orbit22 Aug, 2019
Navstar 77Medium Earth Orbit23 Dec, 2018
Navstar 76Medium Earth Orbit05 Feb, 2016
Navstar 75Medium Earth Orbit31 Oct, 2015
Navstar 74Medium Earth Orbit15 Jul, 2015
Navstar 73Medium Earth Orbit25 Mar, 2015
Navstar 72Medium Earth Orbit29 Oct, 2014
Navstar 71Medium Earth Orbit02 Aug, 2014


Satellite NameOrbit Date
NVS-01Geostationary Orbit (GEO)29 May, 2023
IRNSS-1IInclined Geosynchronous Orbit (IGSO)12 Apr, 2018
IRNSS-1HSub Geosynchronous Transfer Orbit (Sub-GTO)31 Aug, 2017
IRNSS-1GGeostationary Orbit (GEO)28 Apr, 2016
IRNSS-1FGeostationary Orbit (GEO)10 Mar, 2016
IRNSS-1EGeosynchronous Orbit (IGSO)20 Jan, 2016
IRNSS-1DInclined Geosynchronous Orbit (IGSO)28 Mar, 2015
IRNSS-1CGeostationary Orbit (GEO)16 Oct, 2014
IRNSS-1BInclined Geosynchronous Orbit (IGSO)04 Apr, 2014
IRNSS-1AInclined Geosynchronous Orbit (IGSO)01 Jul, 2013