Albino Carbognani (OAVdA – Osservatorio Astronomico Valle d’Aosta) and myself sent some weeks ago a paper describing the photometric behaviour of NEA 2010 WA9 to Prof. Richard Binzel, editor of the Minor Planet Bulletin.
This NEA showed an amplitude of 1.4 +/- 0.2 mag. over a period of 0.097 +/- 0.002 h.
Our article has just been published in MPB 38-2 (2011, Apr.-Jun.) and you can download it also at this link.