Nicolas Chamussy, the head of Airbus Space Systems said: “We have spent many years developing innovative systems to be at the forefront of tackling this growing problem, and to contribute the United Nations’ Sustainable Development Goals for future generations. We will continue to work closely with teams across the world to make our expertise available to help solve this issue.”
The RemoveDEBRIS satellite’s capture net experiment, developed by Airbus in Bremen, Germany, will see a small cubesat deployed from the main mission craft. After moving away, the cubesat will be targeted by the net and captured at a distance of approximately seven metres. The pair will then naturally deorbit, burning up upon re-entry in the atmosphere. This experiment will take place in September.
The mission’s vision-based navigation (VBN) system, comes from Airbus in Toulouse, France and will be tested in October. Relying on 2D cameras and 3D LIDAR (light detection and ranging) technology, RemoveDEBRIS will precisely track a cubesat deployed from the main spacecraft – observing the target’s rotation and movement away. At the same time, the cubesat will transmit its true position to the main spacecraft, enabling the VBN system’s performance to be measured. This will serve as a precursor to developing orbital rendezvous techniques with space debris. Once the VBN system testing is completed, the cubesat’s trajectory will allow it to deorbit naturally.
The RemoveDEBRIS harpoon system, designed by Airbus’ Stevenage, United Kingdom facility, will be launched into a target of spacecraft material fixed to a boom extended from the satellite. Fired at a speed of 20 metres per second, the harpoon will penetrate the target and the experiment will be recorded with high-speed cameras on the spacecraft. The harpoon is slated to be fired in March 2019.
Mindful of the irony inherent in creating a debris-cleaning spacecraft that would itself otherwise become space clutter, RemoveDEBRIS has been designed with a drag sail that will hasten the spacecraft’s demise once its mission is complete. After performing all planned tests, the spacecraft will deploy its drag-inducing sail that will force the craft’s deorbiting in approximately eight weeks – far shorter than the 2.5 years it would require to deorbit naturally. The drag sail concept could be incorporated into future satellites to hasten their destruction via atmospheric re-entry at the end of their operational lifetimes.
RemoveDEBRIS is an international collaboration co-funded by the European Commission’s Seventh Framework Program (FP7). In addition to Airbus and its Surrey Satellite Technology Ltd subsidiary, this first European effort of its kind involves the University of Surrey Space Centre (UK), French-based ArianeGroup, Innovative Solutions In Space (The Netherlands), CSEM (Switzerland); Inria (France) and the Stellenbosch University of South Africa.