IDS activity report 2011 - International DORIS Service

• Futuna : reconnaissance (preliminaries before renovation)• Rikitea : equipment replacement, remote control, local tie survey (new REGINA station)• Metsähovi : reconnaissance with a view to co-locate with GNSS + SLR + VLBI• Mahé : beacon 3.2 and remote control system installing, reconnaissance with a view tomove• HBK : visit (REGINA station upgrade)Rothera, AntarcticAt the end of the year, we provided a new data set of DORIS stations coordinates andvelocities, either from the terrestrial reference frame ITRF2008 (for the main part), or from itsderivative for precise orbit determination DPOD2008 (a third), or using the local tie with aGNSS or another DORIS reference point (8 stations). We did also a complete updating of ourdatabase and improved its interface with a view to publish soon a new set of site logs.With regard to the new IDS stations, Riyadh and Tamanrasset are in stand-by for a while.Therefore, we (IDS Governing Board) decided to investigate three new possibilities: MarshallIslands, French West Indies and Korea.Finally, objectives for the next year are: new stations in Goldstone (in place of MonumentPeak) and Chichijima (Japan), and major renovations in Futuna, Tristan da Cunha, Greenbelt,Mahé and Socorro.25