IERS Conventions 2003 (Technical Note 32)

The IERS Conventions 2003 was finalized in October 2003, and the printed version is available as IERS Technical Note 32. Note that when referenced in recommendations and articles published in past years, this document may have been referred to as the IERS Conventions (2000).

The content of this web page is now frozen to the present version of the IERS Conventions.

• Title Page - The title page for the IERS Conventions. (PDF) (TeX)
• Introduction - General Introduction. (PDF) (TeX)
• Chapter 1 - Numerical Standards. (PDF) (TeX)
• Chaper 2 - Conventional Celestial Reference System and Frame. (PDF) (TeX)
• Chapter 3 - Conventional Dynamical Realization of the ICRS. (PDF) (TeX)
• Read me file for DE405 - Provides information concerning the retrieval and use of the DE405.
  
• Chapter 4 - Conventional Terrestrial Reference System and Frame. (PDF) (TeX) (PS)
• ITRF2000 - Information on ITRF2000.
  
• GCONV subroutine - Transforms geocentric coordinates to geodetic coordinates.
  
• ABSMO_Nuvel subroutine - Computes the new site position at time t from the old site position at time t0 using the recommended plate motion model.
  
• Chapter 5 - Transformation Between the Celestial and Terrestrial Systems. (PDF) (TeX)
• Chapter 5 Tables - Electronic versions of the tables for Chapter 5.
• Chapter 5 Subroutines - Electronic versions of the subroutines for Chapter 5.
• Chapter 6 - Geopotential. (PDF) (TeX)
• Chapter 6 Tables - Electronic versions of the tables for Chapter 6.
• Chapter 7 - Site Displacement. (PDF) (TeX)
• Angular Argument subroutine - A FORTRAN subroutine to return the proper angular argument to be used with the Schwiderski phases.
• Mean Pole Positions - mean pole positions provided by the IERS Earth Orientation Centre.
  
• Atmospheric Regresssion Coefficients - site displacements due to atmospheric loading at specific sites.
• Chapter 8 - Tidal Variations in the Earth's Rotation. (PDF) (TeX)
• ortho_eop subroutine - Subdiurnal/Diurnal Subroutine.
• Chapter 9 - Tropospheric Model. (PDF) (TeX)
• Chapter 10 - General Relativistic Models for Time, Coordinates and Equations of Motion. (PDF) (TeX)
• Chapter 10 software - Contains the routines fb2001 (computes periodic terms of the approximation of the TCB - TCG formula) and hf2002 (computes time ephemeris).
  
• Chapter 11 - General Relativistic Models for Propagation. (PDF) (TeX)
• Appendix - Resolutions from the 24th IAU General Assembly. (PDF) (TeX)

• Glossary - List of acronyms used in the Conventions. (PDF) (TeX)