Symmetry relative tolerance of the covariance matrix to use with Orekit

Dear all,
is there any suggested relative tolerance for the symmetry check of a covariance matrix

MatrixUtils.isSymmetric(covarianceMatrix, relativeTolerance)

in order for Orekit to handle without numerical problems covariance propagation or any other task in which the covariance is involved?

Many thanks.

Based on the Orekit tutorial for orbit determimation, we use 1.0e-10 of tolerance to extract the covariance matrix of the batch least squares orbit determination.

Best regards

Dear Bryan,
many thanks for your reply.

Best Regards