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Satnews Daily
March 23rd, 2017

Hisdesat's PAZ Partnering With SAR Constellation

PAZ, the satellite owned by the Spanish company Hisdesat, will soon increase the monitoring resources of the Airbus radar satellites constellation.

Following the satellite's launch during the last quarter of 2017, PAZ will be positioned in the same orbit as the German owned TerraSAR-X and TanDEM-X satellites and form a high-resolution SAR satellite constellation with them. The addition of this third satellite will reduce revisit time and increase acquisition capacity, leading to subsequent benefits to various applications. All three satellites will feature exactly identical ground swaths and acquisition modes. The new setup will be jointly exploited by Hisdesat and Airbus Defence and Space.

Artistic rendition of the PAZ satellite.

Image is courtesy of AIRBUS.

This SAR constellation will offer improved capabilities for precise monitoring of highly dynamic surface movements thanks to an interferometric repeat cycle reduced to an average of four to seven days, instead of the current 11 days. In addition, numerous data-intensive and time-critical tasks, as in the areas of defence and security, will directly benefit from this new constellation with daily revisits. Additionally, PAZ will also be equipped with an Automatic Identification System (AIS), allowing, for the first time, the simultaneous capture of ship AIS signals and SAR imagery, increasing maritime domain monitoring capabilities across the globe.

Airbus Defence and Space, as prime contractor, integrated the PAZ satellite at their facilities in Madrid and was also responsible for the development of the radar instrument, leading a group of more than ten European companies in this project. The SAR constellation will expand Airbus Defence and Space’s already broad constellation services that are also comprised of the optical satellites SPOT 6/7, Pléiades 1A & 1B and the DMC Constellation.