I feel I have to agree with what huntmaster said. It takes many days for a goose to lay their entire clutch of eggs. They don't sit on them consistently until they are ready to synchronize their development. The mother was likely off foraging, leaving her egg behind knowing it wasn't ready to be "set" yet.How do you know it was abandoned?
Must not have been abandon if you know it was just laid today.
Doing nothing by not taking the egg to begin with would have been best case.
If everyone picked up a random goose egg they found, it would drastically effect the outcome of the species. This is why they are protected.
I know you were trying to do the right thing so I don't blame you. just better to know for next time!