Hellenic National Sentinel Data Mirror Site.
Operated by the National Observatory of Athens.
Powered by the GRNET/GEANT.


The Hellenic National Sentinel Data Mirror Site is a web based system designed to provide EO data users with Search - Cataloguing - Sorting and Dissemination capabilities for the Sentinel products.

Detailed information on Sentinel products and Data Access mechanisms is available at Sentinel Data Access Overview - Sentinel Online.

The current version comprises the 2nd generation of the HNSDMS built upon the legacy of the 1st operational prototype version developed under the current EU-ESA GMES / NOA agreement and successfully operated over the last years in the premises of NOA & GRNET.

Data offer details

The data that HNSDMS offers to its users are products over the region of South & Southeastern Europe, Middle East & North Africa. The precise Area of Interest that offered products intersect with can be seen in the map below.

The qualified product sets are published for both the Near Real Time and Non Time Critical production following the In-Orbit Commissioning Review of each satellite.

The retention period of the Sentinel products offered here is set to 30 days.

Download Sentinels Data

Fast and Secure Discovery and Access of Sentinel Data over the Region of Mediterranean and Black Sea: South & SouthEastern Europe, Middle East & North Africa.

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Contact HNSDMS Team

Feel free to email us to provide some feedback on our system, give us suggestions for improvments, or report a malfunction!

NOA Official

Prof. Kanaris C. Tsinganos

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Scientific Coordinator

Dr. Charalabos (Haris) Kontoes

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MSc. Themistocles Herekakis

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MSc. Vassilis Tsironis

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MSc. Christina Petala

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