The SONARNET recommendations do not have a list of what attributes should only be applied to the Primary HDU and do not need to repeated for supplementary HDUs. This list can be partially inferred, but it would be good to formalize if any attributes do not need to be repeated for additional HDUs.
The SONARNET recommendations do not have a list of what attributes should only be applied to the Primary HDU and do not need to repeated for supplementary HDUs. This list can be partially inferred, but it would be good to formalize if any attributes do not need to be repeated for additional HDUs.