European Data Relay System
Mission type | Data transmission |
---|---|
Operator | German Aerospace Center |
Website | European Data Relay System |
The European Data Relay System (EDRS) system is a European
Purpose and context
The designers intend the system to provide almost full-time communication, even with satellites in low Earth orbit that often have reduced visibility from ground stations. It makes on-demand data available to, for example, rescue workers who want near-real-time satellite data of a crisis region.
There are a number of key services that will benefit from this system's infrastructure:
- Earth Observation applications in support of time-critical and/or data-intensive services; e.g., change detection, environmental monitoring.
- Government and security services that need images from key European space systems such as Global Monitoring for Environment and Security.
- Emergency response and crisis intervention applications that need information and data over areas affected by natural or man-made disasters.
- Security forces that transmit data to Earth observation satellites, aircraft and unmanned aerial observation vehicles, to reconfigure such systems in real time.
- Weather satellite services that require the fast delivery of large quantities of data around the world.
The system has been developed as part of the
Such a terminal was successfully tested in 2007/8 during in-orbit verification between the German radar satellite
Network
EDRS infrastructure consists of two geostationary optical payloads and a Ka band payload, a ground system consisting of a satellite control centre, a mission and operations centre, a feeder link ground station (FLGS), and four data ground stations.
Space Segment
The first EDRS payload, EDRS-A, comprising a laser communication terminal and a Ka band inter-satellite link, was placed on-board Eutelsat commercial telecommunication satellite, called Eutelsat 9B (COSPAR 2016-005A). The satellite was launched in January 2016 by a Proton-M rocket and will be positioned at 9°E.[5][6]
A second EDRS payload was launched aboard a dedicated spacecraft. The EDRS-C (COSPAR 2019-049A), which is also carrying a laser communication terminal, was launched on 6 August 2019
The EDRS A and C form the initial core
Ground Segment
The
The EDRS-A payload as well as the EDRS-C satellite are operated by the German Space Operations Center (GSOC) of the German Aerospace Center in Oberpfaffenhofen near Munich, Germany.
Communications functionality
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Operations
The first users for EDRS were the
Implementation
EDRS is being implemented as a Public Private Partnership (PPP) between the
As of May 2023[update], EDRS has over one million minutes of communications[11] with more than 75,000 successful inter-satellite links.[13][14][15]
See also
- Tracking and Data Relay Satellite System, of USA
- Artemis satellite – ESA GEO satellite 2005-2014, includes optical relay
- Laser Communications Relay Demonstration – NASA payload launched in 2021
- Indian Data Relay Satellite System
References
- ^ a b "Ariane-5 VA249: Intelsat 39 / EDRS-C press kit" (PDF). Aug 2019.
- ^ Williams, Matt (26 Aug 2019). "The ISS Now Has Better Internet Than Most of Us After Its Latest Upgrade". ScienceAlert. Universe Today. Retrieved 2020-06-23.
- ^ Two years of successful operation for Germany's TerraSAR-X, the Earth observation satellite DLR June 2009
- ^ Alphasat Archived 2009-12-23 at the Portuguese Web Archive
- ^ "Lift-off for Europe's space laser network". bbc.com. 30 January 2016. Retrieved 30 January 2016.
- ^ ILS to Launch Eutelsat 9B Satellite in 2015
- ^ "Arianespace selected by Airbus Defence and Space to launch EDRS-C satellite". Arianespace. 19 March 2015. Retrieved 4 October 2015.
- ^ "Europe's EDRS-C/Hylas-3 satellite launch set for early 2018". Space Intel Report. 15 April 2017. Retrieved 18 August 2017.
- ^ Hauschildt, Harald (2012). "European Data Relay System – one year to go!" (PDF). International Conference on Space Optical Systems and Applications (ICSOS). Retrieved 2015-09-07.
- ^ EDRS Operations Center
- ^ a b "EDRS reached 1,000,000 minutes of communications!". Airbus. 2023-04-25. Retrieved 2023-05-04.
- ^ EDRS: An independent data-relay system for Europe becoming reality
- ^ "SpaceDataHighway reaches milestone of 50,000 successful laser connections". Airbus. 2021-06-24. Retrieved 2023-05-04.
- ^ "AUTO-TDS: ENABLING LASER COMMUNICATION NETWORKS TO AUTO DETECT INCOMING LINKS, SECURING CONNECTION AND AUTO-ROUTING THE DATA". ResearchGate. 2022-09-18. Retrieved 2023-05-04.
- S2CID 257574400.
External links