• UF Sparse Matrix Collection
  • Matrix group: Springer
  • Click here for a description of the Springer group.
  • Click here for a list of all matrices
  • Click here for a list of all matrix groups

  • Matrix: Springer/ESOC
  • Description: European Space Operations Center orbit estimates
  • download as a MATLAB mat-file, file size: 49 MB. Use UFget(1860) or UFget('Springer/ESOC') in MATLAB.
  • download in Matrix Market format
  • download in Rutherford/Boeing format

    Springer/ESOC

    dmperm of Springer/ESOC

    scc of Springer/ESOC

    Matrix properties
    number of rows327,062
    number of columns37,830
    nonzeros6,019,939
    structural full rank?no
    structural rank37,349
    # of blocks from dmperm74
    # strongly connected comp.482
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    typereal
    structurerectangular
    Cholesky candidate?no
    positive definite?no

    authorT. Springer and F. Dilssner
    editorT. Davis
    date2007
    kindleast squares problem
    2D/3D problem?no

    Ordering statistics:AMD METIS
    nnz(V) for QR, upper bound nnz(L) for LU1,835,049,395 720,545,269
    nnz(R) for QR, upper bound nnz(U) for LU33,359,282 18,609,492

    Maintained by Tim Davis, last updated 05-Mar-2008.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.