This network brings together all the geodetic reference stations that continuously record and broadcast their observation data. Coordinated and managed by the IGN, it currently comprises 526 stations operated by around fifty partners across mainland France and the overseas territories. With 14 years of collaboration and over 42% of its stations validated by the IGN, TERIA remains the main contributor to the RGP.

The GNSS Permanent Network (RGP) is an essential tool for the geodetic and geographic information community. It guarantees the positioning of any survey carried out using GNSS in the national coordinate reference system, which is mandatory for all producers of geographic data (decree no. 2019-165 of 5 March 2019). The RGP is also a key tool for monitoring land movements.

Since its creation in 1998, the RGP has been designed as a federative network. The IGN, which owns 25 stations, is inviting all permanent station managers to join the RGP via a partnership. This enables them to benefit from services such as the IGN’s expertise, the determination of the official coordinates of the stations, regular monitoring, data quality control and the free and open dissemination of the GNSS data collected.

TERIA, for its part, develops, maintains and operates more than 225 stations throughout France, making up the largest network operating within the RGP.

In 2019, when the agreement was last signed, Mayotte was already at the heart of discussions due to intense seismic activity. Geodetic observations from the 4 RGP stations on the island (one CNES station, two TERIA stations and one Lél@ station) have highlighted a significant displacement of Mayotte since July 2018: around 1.5 cm/month eastwards and 1.2 cm/month vertically (a sinking of the island). These data have led to the hypothesis of a volcanic origin, confirmed by the discovery of an underwater volcano around fifty kilometres from Mayotte in May 2019. To find out more, read this article)

In 2024, cyclone Chido and its devastating consequences on the island were the focus of attention. TERIA and IGN focused their efforts on analysing the impact on the RGP network in order to quickly restore the stations.
With 100% of its stations back in service in just a few days, the aim was to facilitate reconnaissance operations in the field and prepare for reconstruction.