• Tesat on the road to success

    Tesat registers increasing order intake Continuing high level of investment in research and development New CEO, Dr. Marc Steckling, expects 20 % growth in the next few years
  • Parts Agency for ORION's European Service Module

    The European Service Module (ESM) Flight Unit 1, a part of the ORION spacecraft, has successfully been shipped from Germany to the US and is now prepared for its marriage with the NASA crew vehicle to be made ready for the launch at the Kennedy Space Center. Not just being a great success for NASA, ESA and Airbus, but also for the Tesat-Spacecom Parts Agency. As subcontractor of Airbus, TESAT is leading the Coordinated Parts Procurement (CPPA) for the European Service Module, which occupies a...
  • Laser Communications Technology from Tesat setting new records

    As the worlds’ only serial manufacturer of in-orbit certificated and tested laser communication terminals, Tesat is chasing its own records. Now another LCT135 terminal has been produced, tested and qualified in record time and is ready for delivery.
  • German space alliance relies on technology from Tesat-Spacecom

    As prime for the scientific-technical payload and responsible for the military repeater, Tesat-Spacecom is responsible for the design, construction and verification of the core elements of the German space mission “Heinrich Hertz”.
  • Live: Launch of Aeolus

    Aladin’s magic lamp ready for take off: After 16 years of preparation and tough technical difficulties, Aeolus is finally ready to go for its final destination in low earth orbit. Weighing 1.4 tons, Aeolus carries the payload “Aladin”(Atmospheric Laser Doppler Instrument), which is based on the concept of LIDAR (Light detection and ranging), a method related to RADAR, but with laser beams for distance measuring instead of radio waves.
  • VDI-Nachrichten: Shining Light

    Recently an editor of the VDI-Nachrichten paid us a visit for his research on laser communications and EDRS-C, having no fear bringing our experts to their limits and asking difficult and uncomfortable questions. The result is an exciting and extensive article with the headline „Lichtgestalt“ („Shining Light“). The article describes our LCT135, which we developed and produced in cooperation with DLR IKN, and its role within Airbus’ SpaceDataHighway. Many thanks to Iestyn Hartbrich for the...
  • Live: Launch of 4 new Galileo satellites

    The final countdown for Tara, Samuel, Anna and Ellen begins: Only 1 hour and 30 minutes until the new Galileo satellites are launched into orbit onboard an Ariane 5 launcher. In short: the European Galileo program is the counterpart to the US GPS system and is though an independent, global satellite navigation system. Tesat-Spacecom's part for the four new satellites was to deliver the essential TT&C transponders, which are being used to properly determine the position of an object in space...
  • Tesat-Spacecom participates in EU research and innovation programme Hi-FLY

    Tesat takes part in European Union’s research and innovation programme Hi-FLY to take RF data links to the next stage. But let’s first clarify: What is the Hi-FLY project? And why is it so important?
  • Gigabit Connectivity for the International Space Station

    Berlin, 26.04.2018: At today’s press conference Airbus Defence and Space, the Institute for Communication and Navigation of the German Aerospace Center (DLR-IKN) and Tesat-Spacecom published their cooperation with the aim to equip the ISS with a high capacity direct-to-earth Laser Communication Terminal.
  • World's smallest Laser Communication Terminal from Tesat on track - CDR...

    Backnang, 12.04.2018: Tesat's Laser Communication Terminal for CubeSats, CubeL, is on track after recently the Critical Design Review (CDR) was successfully held at the German Aerospace Center (DLR) in Oberpfaffenhofen. This was an important milestone for the development program on the way to its demonstration mission, which is planned to launch later this year.
  • 10,000 laser links between satellites established

    Satellite communication reaches new peak Backnang, 11.04.2018: Tesat-Spacecom established 10,000 connections between satellites using its Laser Communication Terminals (LCT). Tesat's LCTs transmit massive amounts of data at up to 1.8 Gbps over distances of 80,000 km in orbit. In addition, the company develops significantly smaller LCTs for Direct-to-Earth applications.
  • Tesat celebrates 10 Years of Laser Communications in Space

    Backnang, 21.02.2018: Exactly ten years ago on 21st February, 2008, a government-to-government cooperation between the United States and Germany to establish a laser link between two operational satellites in Low Earth Orbit (LEO) started a new chapter in the history of space. The German radar satellite TerraSAR-X and the U.S. Missile Defense Agency satellite NFIRE, both equipped with Laser Communication Terminals (LCT) manufactured by Tesat-Spacecom, established the first successful and...
  • Advanced capability evolution for optical Laser Communication

    The LCT135 with its 135 mm narrow aperture is the smallest terminal in the geostationary orbit. Working in a daily routine it is the powerhouse within the European Data Relay System called SpaceDataHighway. Under the ESA ScyLight program Tesat-Spacecom has now spawned the next evolution step for our well known GEO Laser Communication Terminals LCT135, by further developing and implementing new additional features to make even more applications possible. Therefore the GEO LCT135 will get –...
  • Live: Launch of SES-14 and Al Yah 3

    Tomorrow, on the 25th January, at 23:20 CET (live stream starts at 22:05 CET) an Ariane 5 ECA will launch two satellites - the SES-14 and the Al Yah 3 - into a geostationary transfer orbit. A rocket launch per se is a event you don't want to miss, but - needless to say - for us it's always a very special moment when our equipment gets shot into space, such as a variety of Ku- and Ka-Band OMUXes, IMUXes, Switches, Filters and MPMs.
  • Live: Launch of Sentinel-5P

    Today at 11:27 am CET the European Sentinel-5P satellite of the Copernicus program starts with a Rockot from Plesetsk Cosmodrome in northern Russia. In addition to the great fact that this launch is one of the few that takes place during the day and you do not have to stay up late or get up early, the mission of the Sentinel 5P is a remarkable one: With its state-of-the-art Tropospheric Monitoring Instrument (Tropomi), it measures a variety of trace gases such as nitrogen dioxide, ozone,...
EDRS-C

On 14th March 2016 the communication module (CM) of the EDRS-C payload was delivered to OHB. On the 16th March the incoming inspection in Bremen could also be completed successfully. Thereby two of the three components of the payload – CM and antenna – as also the testing system for the following satellite testing phase at OHB in Bremen respectively at IABG in Ottobrunn are ready. The last essential component for the function of the hybrid payload, the LCT, is in the final acceptance test phase at Tesat-Spacecom.

The EDRS-C hybrid payload (combined RF and laser-optical link) is, besides the in the end of January launched EDRS-A payload on Eutelsat 9B, the second node of the geo-stationary European Data Relay System (EDRS). While the EDRS-A payload passes through the in-orbit tesat phase, the AIT- (assembly integration and test) phase on satellite level for the EDRS-C shall start now. According to the current plans, the launch is set for 2017.

The European Data Relais System (EDRS) shall enable faster transmission of larger data volumens through laser link of a satellite in a low earth orbit (LEO) via a satellite relais station (EDRS satellite) in a geostationary orbit (GEO) which in turn sends the data via RF link to a ground station. Thereby the satellites are being operated by a public-private partnership between ESA and Airbus. Tesat delivers the both EDRS payloads to the satellite primes Airbus Defence and Space, Toulouse, (EDRS-A) and OHB (EDRS-C). The payload responsibility includes a broad spectrum of tasks, which require a smooth combination of all product, service and production areas:

  • System technical design of the payload
  • Development and production of all devices
  • Adaption of the LCT to the requirements of the satellite platform as well as the production and testing of the LCT
  • Procurement of the antenna, the DPU as well as the RF harness and various devices
  • Integration and test on device and payload level
  • Programmatic completion of the payload project incl. all device subprojects

The responsibility of Tesat does not end with the delivery of the payload but extends to the payload tests on satellite level as well as training courses for the operator and a 24/7 on-call in-orbit support during the first few years.

All Tesat devices (TWTAs, modulators, filters, switches and diplexer) for EDRS-C as well as the new developed DPU (digital procession unit – as data-intervace to the LCT), which was procured from Airbus UK, were already completed in April 2014. With the delivery of the CFI panel (customer furnished item) for the CM integration of OHB in the end of July 2015, the AIT phase started in Backnang. That the integration could be brought successfully to an end is not at last an achievement of the integration team of Tesat-Spacecom.

The following test phase, from November 2015 til end of February 2016, proceeded largely smooth and the performance of the delivered CM matches in its entirety the expectations of the customer.

The now beginning project phase will be marked of the integration of the satellite as well as the performance and environmental tests on satellite level.