Dear Colleagues, As announced earlier an IERS Combination Pilot Project (CPP) workshop will be held on Saturday, December 11, 2004, 09:00 h - 18:00 h. The following topics will be discussed: 1) Combination Pilot Project and CONT’02 ("Weekly" SINEX) 2) Long Time Series and their combination (ITRF, IERS2005, ...) 3) Handling of Systematic Biases 4) Conventions, Modelling, Parameterisation 5) Local Ties where the main focus is on aspects concerning the IERS CPP. In the evening a joint dinner for the participants is planned. The workshop will be held outside San Francisco in the Napa Valley area. The meeting location is: The Chateau Hotel & Conference Centre 4195 Solano Ave. Napa, CA 94558 phone: #1-707-253-9300 fax: #1-707-253-0906 To get more information about the conference venue you can visit the hotel website: www.thechateauhotel.com . A limited number of rooms are blocked for the nights December 10/11 and December 11/12. Please make the reservation by yourself as soon as possible to get the special rate (US$ 89 + tax, incl. continental breakfast). The Napa Valley is located in the Northern Bay area, approx. 60 miles north of the San Francisco International airport. For participants not planning to rent a car, a bus service is available cruising from the San Francisco International airport to the Napa Valley approximately every 2 hours. Details see under . For a final planning it is important that you fill the form given below and return it to the IERS Central Bureau ( central_bureau@iers.org ) till November 23, 2004 with a copy to Markus Rothacher ( markus.rothacher@bv.tum.de ). I, ........................................................................ will participating in the workshop arrival: ......................., departure ............................... and will give a presentation (yes / no) in session ......... with the title ............................................................ ........................................................................... For organisational purposes, all participants should fill this form even if you have announced your interest earlier. We hope to see you all in the Napa Valley, With kind regards Markus Rothacher and Bernd Richter ____________________________________ Dr. Bernd Richter Director of IERS Central Bureau Bundesamt für Kartographie und Geodäsie Federal Agency for Cartography and Geodesy Richard-Strauss-Allee 11 D-60598 Frankfurt am Main Internet: http://www.iers.org E-Mail: richter@iers.org Tel: # 49-69-6333-273 Fax: # 49-69-6333-425