Paris Observatory Geodetic VLBI Center

This center is a component of the International VLBI Service for Geodesy and Astrometry (IVS).

Analysis Service

Solution opa2024a for Earth orientation, TRF, and CRF, and normal equation systems in SINEX format (data center),
Intensive solution opa2024i for UT1,
Baseline coordinate time series,
Station coordinate time series,
Radio source coordinate time series,
Free core nutation follow-up from IERS data,
General statistics on the observations.

Data Center

The data center is one of the three IVS primary data centers (with NASA/CDDIS and BKG). You can

Download VLBI data and products via FTP at ivsopar.obspm.fr, and
Submit VLBI data and products: please contact us to obtain the procedure.

Latest Processed Sessions

/home/oper/outils/db/2025/20250120-r11191/20250120-r11191_V004_iOPA_kall.wrp
/home/oper/outils/db/2025/20250123-r41191/20250123-r41191_V004_iOPA_kall.wrp
/home/oper/outils/db/2025/20250127-r11192/20250127-r11192_V004_iOPA_kall.wrp
/home/oper/outils/db/2025/20250202-d25033/20250202-d25033_V006_iOPA_kall.wrp
/home/oper/outils/db/2025/20250203-v25034/20250203-v25034_V006_iOPA_kall.wrp
/home/oper/outils/db/2025/20250203-z25034/20250203-z25034_V004_iOPA_kall.wrp

Current directory listing and latest EOP offsets to IERS EOP 14 C 04.