Orbit in Sentinel 1

I didn’t find what kind of orbit data is used inside the GRD products.
Does GRD-Fast24h contain RESORB orbit data ? If yes, I guess there is no impact to apply orbit correction with RESORB orbit file on GRD product…

The used orbits are specified in the metadata. I’m not sure what the current baseline for GRD-Fast24h is, perhaps @ghajduch could help?

I can’t connect this website
Is there a solution?