Depends on the network. The current satellite internet systems all use satellites parked in a geosynchronous orbit. This means that ping times are measured in t

Depends on the network. The current satellite internet systems all use satellites parked in a geosynchronous orbit. This means that ping times are measured in the hundreds of milliseconds in most cases. The satellite network that Musk is talking about uses a very large web of satellites in low Earth orbit, which would mean ping times of less than 100 milliseconds.