V4641 Sgr May 20-21 obvservation (Berto Monard) The observation referred to in [vsnet-campaign-v4641sgr 9] has been posted to vsnet-alert 7339. The information is accesible at http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/alert7000/msg00339.html Regards, Taichi Kato VSNET Collaboration team