I think your calculation is not correct. Your calculation is (300000 km/s)/(12761 km) = (23.5 (1/s)) Note the result is s^-1, not ms. 1/23.5 is 0.0425s, or 4

I think your calculation is not correct. Your calculation is (300000 km/s)/(12761 km) = (23.5 (1/s)) Note the result is s^-1, not ms. 1/23.5 is 0.0425s, or 42.5ms, so that latency is not possible.