[1] Maastricht Univ, Dept Gravitat Waves & Fundamental Phys, NL-6200 MD Maastricht, Netherlands
[2] Nikhef, Sci Pk 105, NL-1098 XG Amsterdam, Netherlands
[3] Vrije Univ Amsterdam, Dept Phys & Astron, VU Amsterdam, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands
[4] UCLouvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain La Neuve, Belgium
[5] Eindhoven Univ Technol, NL-5612 AZ Eindhoven, Netherlands
[6] Fraunhofer ILT Inst Laser Technol, Steinbachstr 15, D-52074 Aachen, Germany
[7] Univ Antwerp, Prinsstr 13, B-2000 Antwerp, Belgium
[8] Katholieke Univ Leuven, Dept Phys & Astron, Celestijnenlaan 200D, B-3001 Leuven, Belgium
[9] Univ Twente, POB 217, NL-7500 AE Enschede, Netherlands
[10] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
[11] Univ Birmingham, Inst Gravitat Wave Astron, Birmingham B15 2TT, W Midlands, England
[12] Karlsruhe Inst Technol KIT, D-76131 Karlsruhe, Germany
[13] ULiege Precis Mechatron Lab, 9 Allee Decouverte, B-4000 Liege, Belgium
[14] Vrije Univ Brussel, Fac Engn, Dept Appl Phys & Photon TONA, Brussels Photon B PHOT, Pl Laan 2, B-1050 Brussels, Belgium
[15] FlandersMake, Pl Laan 2, B-1050 Brussels, Belgium
[16] Inst High Energy Phys Barcelona IFAE, Fac Ciencies Nord, Campus UAB, Barcelona 08193, Spain
[17] ICREA, Campus UAB, Barcelona 08193, Spain
[18] Univ Western Australia, OzGrav, Crawley, WA 6009, Australia
[19] Max Planck Inst Gravitat Phys AEI, Callinstr 38, D-30167 Hannover, Germany
[20] Univ Savoie Mt Blanc, Univ Grenoble Alpes, Lab Annecy Phys Particules LAPP, CNRS IN2P3, F-74941 Annecy, France
[21] Ghent Univ Gent, Dept Phys & Astron, Proeftuinstr 86, B-9000 Ghent, Belgium
[22] Vrije Univ Brussel, Theoret Nat Kunde, Pl Laan 2, B-1050 Brussels, Belgium
[23] Int Solvay Inst, Pl Laan 2, B-1050 Brussels, Belgium
[24] Rhein Westfal TH Aachen, Templergraben 55, D-52062 Aachen, Germany