Variances and covariances of primary nuclides [note this file is a .zip file]
Reference Document
The AME 2020 atomic mass evaluation has been published in Chinese Phys. C 45, 030002 (2021) and Chinese Phys. C 45, 030003 (2021). Any work that will use these files should make reference to the original papers listed above, and not to the electronic files.