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UK’s National Satellite Test Facility Takes Shape

October 8, 2020


Credit: STFC RAL Space

The building is finally underway, and RAL has finished the exterior of the UK’s National Satellite Test Facility that will become the first of its kind in the UK to help larger and more complex spacecraft get ready for a launch. Logistics include installation of more than 900 tonnes of steel framework, and 3000mɜ of concrete poured to complete the main structure of the National Satellite Test Facility (NSTF).

The building will house an array of specialized equipment to put spacecraft through their paces before launch. Construction partners Mace have now installed the first piece of apparatus for the vibration facility, which will test satellites to ensure that they can withstand the bumpy ride into space, and are working on the Electromagnetic Compatibility (EMC) chamber — which will offer an area free from electromagnetic background noise, where spacecraft electronics can be checked and tested.

The NSTF will address the UK’s need for a complete set of large scale space test facilities in one building. It will be run by RAL Space who are experts in testing and part of the UK’s Science and Technology Facilities Council.

Professor Chris Mutlow, Director of RAL Space said, “I’m delighted that we’ve passed this milestone. We are well on our way to opening our doors to the space sector.

Large satellites require at least 6 months of testing before they’re launched and this becomes longer and more expensive if all the test equipment is in different places. It’s fantastic to see the test equipment shaping up under one roof. The space sector in the UK is thriving and we’re looking forward to offering this one-stop-shop to support the development of larger and more advanced spacecraft in the UK.”

The suspension system, the first of the vibration equipment, has been successfully installed on the reaction masses, the two 250 tonne blocks on which the vibration system will stand. At the NSTF, two 222 kN thrust shakers will be used to simulate the vibration of launch and test the satellite in 3 axes, the equivalent of a fully loaded 25-seat bus being strapped to the top of a jack hammer.

More than 1500mɜ of earth was removed from site so that the vibration equipment could be sunk into the ground. The suspension system causes the vibration facility to ‘float’ completely isolated from the rest of the building This ensures that the vibrations from the shaker will not affect any of the other measurements taking place in the NSTF or by other sensitive scientific equipment nearby on the Harwell Campus in Oxfordshire.

Alongside the vibration facility, the NSTF will offer EMC and antennae testing. This requires an electrically neutral space, built into the fabric of the building. 290m2 of copper sheet have been laid into the floor of the chamber. Over the next few months this will be joined with copper wall and ceiling panels to create a copper shield through which electromagnetic waves cannot pass.

Science Minister Amanda Solloway said, “It is brilliant to see how the government — backed National Satellite Test Facility is coming together.

“By providing our flourishing space sector with the capacity to prepare larger, more advanced spacecraft for launch, this cutting edge facility will help ensure the UK remains a world leader in space technologies for decades to come.”

Inside this ‘quiet’ zone satellite manufacturers will be able to accurately measure the ‘noise’ that satellite antennae produce, ensuring that we get a high quality signal back to Earth for our TVs, weather forecasts and science operations.

Rob Bridges Project Director for Mace said, “It is an honor to be leading the international multi-disciplinary team delivering the NSTF. From the first design workshop my team have been challenged to bring together a blend of technologies and innovations to design and deliver a future proofed, flexible building that will not only house specialist testing equipment but is required to be integral to the testing providing a stable environment, whilst using the structure as a dynamic part of the testing process.”

The vibration equipment and EMC join the 7m diameter Large Space Test Chamber which arrived from Italy in April and will be able to test minibus sized satellites for the harsh conditions of space ranging from -180֯C to +100C֯ .

The National Satellite Test Facility, being delivered by Mace and procured under the Southern Construction Framework, has been funded by the UK Research and Innovation as part of the Industrial Strategy Challenge Fund.

Filed Under: Building, Business Moves

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