The DORIS days have been organised by CNES in partnership with the IGN, CLS, and GRGS and with the sponsorship of the INSU, the IERS and the CSTG (IAG commission VIII).
The purpose of these days is to promote exchanges between different designers, operators and users of the DORIS system by presenting the results obtained since the system was placed in orbit. These results concern precise orbit determination and location with their respective applications, as well as all other spheres in which DORIS applications are used (gravitational field, ionosphere, troposphere...).
This second version of these DORIS days were in particular devoted to the start-up of the DORIS Pilot Experiment for the purpose of creating an International DORIS Service and of presenting the technological changes which have been made to the system (JASON, ENVISAT and SPOT5 missions, 3rd generation beacons).
Programme
Tuesday 2 May
Opening session
Chairperson: Anny CAZENAVE, GRGS/LEGOS, Toulouse, France
Michel KASSER, IGN, Saint-Mandé, France
Marc PIRCHER, CNES, Toulouse, France
Gilles TAVERNIER, CNES, Toulouse, France
TOPIC 1: DORIS program
Chairperson : Jean-Louis FELLOUS, CNES, Paris, France
DORIS missions
L. RUIZ, CNES, Paris, France
PDF paper (42 Kb) 
PowerPoint slides (1.6 Mb)
DORIS system planned evolutions
P. SENGENES, CNES, Toulouse, France
Current status and evolution prospects of the DORIS network
H. FAGARD, IGN/SGN, Saint-Mandé, France
PDF paper (67 Kb) PowerPoint slides (1.4 Mb)
Current status of the DORIS pilot experiment
G. TAVERNIER, CNES, Toulouse, France
PDF paper (403 Kb) PowerPoint slides (2.3 Mb)
TOPIC 2: Results
Chairperson: Pierre EXERTIER, CERGA/CNRS, Grasse, France (TBC)
Improving the TOPEX/POSEIDON orbit using DORIS tracking data
N. ZELENSKY, D.S. CHINN, Raytheon ITSS, Greenbelt, Etats-Unis
D.D. ROWLANDS, F. LEMOINE, NASA/GSFC, Etats-Unis
PDF paper (481 Kb)
DORIS: a core orbitography and positioning system to realize the full potential of altimetry
P. VINCENT, CNES, Toulouse, France
DORIS-DIODE: from SPOT4 to JASON-1
C. JAYLES, J-P. BERTHIAS, D. LAURICHESSE, CNES, Toulouse, France
S. NORDINE, P. CAUQUIL, COFRAMI, Toulouse, France
PDF paper (English) (130 Kb) PDF paper (Français) (142 Kb) PowerPoint slides (205 Kb)
Contributions of DORIS to precision orbit determination, station positioning and gravity field investigations
J.C. RIES, University of Texas, Austin, Etats-Unis
PDF slides (860 Kb)
Geocenter motion determined with DORIS and SLR data.
Comparison with surface loading data
J-F. CRETAUX, GRGS/LEGOS, Toulouse, France
Vertical motions due to global redistribution of the surface load
S. MANGIAROTTI, GRGS/LEGOS, Toulouse, France
DORIS campaigns at Dome C, Antarctica in 1993 and 1999-2000
C. VINCENT, CNRS, Grenoble, France
PDF paper (1.9 Mb) PowerPoint slides (1.9 Mb)
DORIS beacons associated to other geodetic technics in tectonics projects in SW Pacific
S. CALMANT, ORSTOM/IRD, Nouméa, Nouvelle-Calédonie
Wednesday 3 May
Round-table: International DORIS Service
• Technical aspects of the preliminary activities related to the DORIS Pilot Experiment,
components, coordination, stations selection and working groups.
Chairperson: John DOW, ESA / ESOC, Darmstadt, Allemagne (TBC)
The DORIS data center at the CDDIS
C. NOLL, NASA/GSFC, Greenbelt, Etats-Unis
M. DUBE, Raytheon ITSS, Greenbelt, Etats-Unis
PDF paper (787 Kb) PDF slides (795 Kb)
Formats for DORIS data and products
J. RIES, University of Texas, Austin, Etats-Unis
• Future International DORIS Service objectives, scientists expectations,
relations with other services
Chairperson: Martine FEISSEL, IGN/LAREG, Marne-la-Vallée, France (TBC)
Interaction between scientific research and services
M. FEISSEL, IGN/LAREG, Marne-la-Vallée, France
PDF paper (42 Kb)
Round-table: System and performances evolutions
• DORIS role in the years to come within the context of future international missions,
users needs, system evolution
Chairperson: Pascal WILLIS, IGN/LAREG, Marne-la-Vallée, France
DORIS role in the next five years
P. ESCUDIER, CNES, Toulouse, France
PDF paper (7 Kb) PowerPoint slides (52 Kb)
POSTER SESSION
- Orbit determination using on-orbit GPS
R.Z. ZHANG, X'IAN Satellite Control Center - A revised DTM atmospheric density model: modelling strategy and results
S. BRUINSMA, G. THUILLIER, Service d'Aéronomie, Verrières-le-Buisson, France
R. BIANCALE, CNES/GRGS, Toulouse, France - DORIS data analysis at the Institute of Astronomy, RAS
S. KUZIN, S.K. TATEVIAN, INASAN, Moscou, Russie
PDF paper (22 Kb)
- One day operation of the DORIS system ground segment
M-N. LOAEC, B. NUHN FAT, J-J. VALETTE, CLS, Ramonville St Agne, France - About the vertical velocity of DORIS
T. TANAKA, Tono Research Institute of Earthquake Science, Gifu, Japon - DORIS accurate location service: from request to delivery and the applications
J. VALETTE, M-N. LOAEC, B. NUHN FAT, CLS, Ramonville St Agne, France - DORIS weekly point positioning at IGN: present status and perspectives
P. WILLIS, IGN/LAREG, Marne-la-Vallée, France - On the problem of the ionosphere model construction with the aid of the DORIS, GPS, and GLONASS satellite system
S. KAVTARASHVILY, NPO PM, Krasnoyarsk, Russie
PDF paper (196 Kb)
- The research of DORIS system possibilities at the GNSS-2 creation
K. DETYUK, S. KAVTARASHVILY, V. KARNAUKHOV, V. KOSSENKO, NPO PM, Krasnoyarsk, Russie - Enhancement DORIS with GPS and application
G. NIE, Technical University, Wuhan, Chine - Oil industry DORIS application
F. BOUCQUAERT, CGG/TOPNAV, Massy, France - DORIS contribution to the determination of the Earth polar motion
D. GAMBIS, D. JEAN-ALEXIS, IERS/BC, Paris, France
J-P. BERTHIAS, A. GUITART, A. PIUZZI, SOD/CNES, Toulouse, France - Global geodesy from SPOT-2 DORIS
R. GOVIND, J. DAWSON, G. LUTTON, AUSLIG, Belconnen, Australie - Participation of LEGOS-GRGS and CLS as an Analysis Center in the future IDS
L. SOUDARIN, CLS, Toulouse, France
PDF paper (26 Kb) PDF poster (118 Kb)
- The Netlander ionosphere and geodesy experiment
J-P. BARRIOT, V. DEHANT, W. FOLKNER, J-C. CERISIER, A. RIBES, J. BENOIST, Observatoire Midi-Pyrénées, Toulouse, France - Orbit determination residuals
J-P. BERTHIAS, CNES, Toulouse, France - GRIM-5 Earth gravity model
R. BIANCALE, CNES/GRGS, Toulouse, France
PDF paper (6 Kb)