The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants

Constants
Topics:
Values
Energy
Equivalents
Searchable
Bibliography
Background

Constants
Bibliography

Constants,
Units &
Uncertainty
home page
Data from the CODATA 2002 least-squares adjustment of the values of the constants
(Data from the 2014 adjustment will be available here at a future date.)

Numerical data associated with the 2002 least-squares adjustment of the values of the constants is provided here with enough significant figures to be useful in related calculations. The notation is that given in Reviews of Modern Physics 72, 351 (2000), Appendix E. The data is from the CODATA 2002 least-squares adjustment described in Reviews of Modern Physics 77, 1 (2005).

PDF files require a reader to be loaded for viewing. [ Get the Adobe PDF Reader ]

    Input data Q
       List of items of input data (PDF file 52 kB)
       Numerical input data; elements of Q in SI units (text file)
       Input data covariance matrix cov(Q) = V in SI units (text file)
       Input data covariance matrix inverse V -1 in SI units (text file)

    Adjusted constants Z
       List of adjusted constants - name order (PDF file 43 kB) or numerical order (PDF file 43 kB)
       Numerical values of adjusted constants Z in SI units (text file)
       Adjusted constants covariance matrix cov(Z) = G in SI units (text file)

    Matrix of derivatives A
       Numerical values of derivatives of F in SI units (text file)

    Residuals Y
       Differences between input data and calculated values Y = Q - F(Z) in SI units (text file)

Other links
            Searchable bibliography on the constants


 
Detailed contents   -   About this reference   -   Feedback

Online: April 2005