[1] Max Planck Inst Solar Syst Res, D-37191 Katlenburg Lindau, Germany
[2] European Space Astron Ctr, Madrid 28691, Spain
[3] DLR, Berlin, Germany
[4] Univ Maryland, College Pk, MD 20742 USA
[5] Univ Bern, Bern, Switzerland
[6] CNES, Toulouse, France
[7] Open Univ, Milton Keynes MK7 6AA, Bucks, England
[8] IASF INAF, Rome, Italy
[9] Osserv Astron Capodimonte, INAF, I-80131 Naples, Italy
[10] Uppsala Univ, Uppsala, Sweden
[11] Leiden Univ, Leiden, Netherlands
[12] EADS Astrium, Friedrichshafen, Germany
[13] Hong Kong Polytech Univ, Hong Kong, Hong Kong, Peoples R China
[14] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA
[15] Keldysh Inst, Moscow, Russia
[16] Vernadskij Inst, Moscow, Russia
[17] Space Res Inst, Moscow, Russia
[18] Lavochkin Assoc, Moscow, Russia
[19] Univ Naples Federico II, Naples, Italy
[20] Univ Padua, Padua, Italy
[21] Tel Aviv Univ, IL-69978 Tel Aviv, Israel
[22] Tech Univ Carolo Wilhelmina Braunschweig, Braunschweig, Germany
[23] Int Space Sci Inst, Bern, Switzerland
[24] Univ Bremen, Bremen, Germany
[25] Univ Winnipeg, Winnipeg, MB R3B 2E9, Canada
[26] Univ Paris, F-75252 Paris, France
[27] MPIfK, Heidelberg, Germany
[28] CSIC, IAA, Granada, Spain
[29] ESA, Estec, Noordwijk, Netherlands
[30] Natl Cent Univ, Taipei, Taiwan
[31] Univ Munster, Munster, Germany
[32] IWF, Graz, Austria
[33] Univ Warsaw, Warsaw, Poland
[34] IAC, Tenerife, Spain
[35] Queens Univ Belfast, Belfast, Antrim, North Ireland
[36] Kobe Univ, Kobe, Hyogo 657, Japan
[37] CNRS, F-91405 Orsay, France
[38] Univ Nice, Nice, France
[39] Carnegie Inst Sci, Washington, DC 20005 USA
[40] Univ Cologne, Cologne, Germany
[41] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
[42] USA, Res Lab, Washington, DC 20310 USA
[43] PAS, Space Res Ctr, Warsaw, Poland
[44] DLR, Cologne, Germany
[45] Cardiff Univ, Cardiff, Wales
[46] Krakow Tech Univ, PL-31155 Krakow, Poland
[47] JPL, Pasadena, CA USA
[48] ETH, Zurich, Switzerland
[49] Univ London Imperial Coll Sci Technol & Med, London, England
[50] LAM, Marseille, France