Contacts and addresses of the members of the Working Group:

K.Aksnes (ret.)
e-mail:kaare.aksnes@astro.uio.no

J.E. Arlot
IMCCE-Paris Observatory
e-mail:arlot@imcce.fr

M. Assafin
observatoire de Valongo/UFRJ - Rio
e-mail:massaf@astro.ufrj.br

C. Blanco
Catania Observatory
e-mail:cblanco@ct.astro.it

J. Camargo
Observatorio Nacional de Rio
e-mail:camargo@on.br

N. Emelianov
Sternberg Astronomical Institute, Moscow
e-mail:emelia@sai.msu.ru

R.A. Jacobson
Jet propulsion laboratory
e-mail:raj@murphy.jpl.nasa.gov

J.H. Lieske
Jet propulsion laboratory
e-mail:lieske@aya.yale.edu

D. Pascu
U.S. Naval Observatory
e-mail:danpascu@starpower.net

Q. Peng
Jinan University
e-mail:pengqy@pub.guangzhou.gd.cn

M. Rapaport
Observatoire de Bordeaux
e-mail:rapaport@obs.u-bordeaux1.fr

P.K. Seidelmann
e-mail:pks6n@virginia.edu

M. Soma
e-mail:mitsuru.soma@nao.ac.jp and mitsuru.soma@gmail.com

D.B. Taylor
e-mail:don.taylor@stfc.ac.uk

R. Viera-Martins
Observatorio Nacional de Rio
e-mail: rvm@on.br

G. V. Williams
Minor Planet Center
e-mail: gwilliams@cfa.harvard.edu