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M\\'enard, F. Vincent, F. Widmann, G. Chauvin, G. Duvert, G. Hei{\\ss}el, G. Perrin, G. P. P. L. Otten, G. Rodr\\'iguez-Coira, G. Rousset, H. Beust, H. Bonnet, J.-B. Le Bouquin, J. Dexter, J.D. Monnier, J. Girard, J. J. Wang, J. Kammerer, J.-L. Beuzit, J.P. Berger, J. Rameau, J. Shangguan, J. Stadler, J. Woillez, K. Perraut, K. Ward-Duong, L. Jocou, L. J. Tacconi, L. Kreidberg, L. Pueyo, L. Rodet, M. Baubck, M. Benisty, M. Bonnefoy, M. Horrobin, M. Houll\\'e, M. Keppler, M. Meyer, M. Nowak, O. Pfuhl, O. Straub, P. Caselli, P. Gao, P. Garcia, P. Kervella, P. L\\'ena, P. Molli\\`ere, P. T. de Zeeuw, R. Abuter, R. Asensio-Torres, R. Dembet, R. Garcia Lopez, R. Genzel, R. J. De Rosa, S. Blunt, S. D. von Fellenberg, S. Facchini, S. Gillessen, S. Ginzburg, S. Hinkley, S. Hippler, S. Lacour, S. Scheithauer, T. Gardner, the GRAVITY collaboration, T. Henning, T. Ott, T. Paumard, T. Shimizu, T. Stolker, V. Christiaens, V. Coud\\'e du Foresto, V. Lapeyr\\`ere, W. Brandner, X. Haubois, Y. 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