The Long March 5 Y3 rocket had a successful launch at Hainan island.
Source: Spaceflight Now
When closer to Equator line are the launches, better. Because Earth’s rotational speed is higher than in other regions, reaching 1669 km/h (1037.069 mph). A rocket launched in Equator gains an adicional impulse, therefor saves fuel.
The Long March 5 is the heaviest rocket in China’s fleet, and one of the most powerful launcher’s in the world. The Long March 5 can deliver up to 14 metric tons — nearly 31,000 pounds — to geostationary transfer orbit, a popular target orbit for large communications satellites.
Satellites in geostationary orbit have the same rotation period as Earth. In relation to an observer in Earth, satellite is always in the same position. many communication satellites are in this orbit to transmit and relay signals to the same region.
This is launch’s video.