Dear user,
Thank you for your interest in gravity field model EIGEN-6S4. The authors decided to restrict the access to this dataset in favour of a newly published version that contains improved modelling of the time variable part, in particular C20. The old model is available upon request, please contact Kirsten Elger, Franz Barthelmes and Christoph Förste to discuss details.
The improved model is available here:
With kind regards
