• Nanosatellite sees the light

    Laser Communications for a new age in space TESAT, KSAT and GomSpace have partnered up to introduce full optical communications capability for new innovative small satellite missions and space-based services.
  • 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.
Inmarsat-5F4
A Falcon 9 takes communication satellite Inmarsat-5 F4 into geostationary orbit

PI1281 – Backnang, 16.05.2017: When the countdown for the last of the four Inmarsat-5 satellites starts at the Kennedy Space Center in Florida, it is just after 1 am Central European time. The engines ignite, the rocket lifts off, and shortly thereafter: frenetic cheers. The launch of the Falcon 9 rocket from the US space company SpaceX under the leadership of Elon Musk has been successful and the valuable cargo is on its journey.

The situation around the newly launched satellite of the British satellite communications company Inmarsat is an unprecedented one. When usually the service life of a satellite is planned and its tasks are clearly defined, the fourth Inmarsat-5 has been built as a so-called backup satellite. Apart from its actual area of application – to stand in when one of its predecessors falls out – Inmarsat-5 F4 could be used for an improved coverage of Europe with mobile services. But also for new business areas, which could develop during the course of its life time, the new satellite could be used in short term and thus represents an exciting business opportunity, according to Rupert Pearce, CEO of Inmarsat.

Like the first three, the fourth Inmarsat-5 was commissioned at and manufactured by the US aerospace company Boeing. The German high-tech company Tesat-Spacecom from Backnang near Stuttgart was a supplier for significant devices and modules, which are of great importance for the processing of incoming signals and their further processing within the satellite.

About Tesat: Over the course of five decades, Tesat-Spacecom has developed in-depth expertise in manufacturing of payload equipment for communication satellites and has established itself as a clear European market leader. On its 60,000m² premises in Backnang, Germany, 1,200 employees develop, assemble, integrate, and test systems and equipment for telecommunication via satellite. To date, more than 700 space projects have been completed. The accumulated in orbit lifetime heritage exceeds 250 million hours.

Further information for journalists:
Tesat-Spacecom GmbH & Co KG
Nina Backes, Communications
Gerberstrasse 49, D-71522 Backnang
Tel.: +49-7191-930-1126
E-Mail: info[at]tesat.de

You can find a video of the launch on http://www.inmarsat.com/i5f4/