Chemical propulsion orbital transfer method and system for satellite

The invention relates to a chemical propulsion orbital transfer method and system for a satellite. The method comprises the steps that according to the engine thrust and single-time propulsion duration constraint, mooring rails of the satellite from GTO to GEO during chemical propulsion orbital transfer are selected; according to GTO, GEO and rail parameters of all the mooring rails, the speed increment and thrust direction required by each time of orbital transfer are calculated; according to the speed increment, the machine time and machine starting moment for each time of orbital transfer are calculated. According to the method, the machine starting moment, machine time and thrust direction for each time of orbital transfer are used as initial values for in-batch optimization, and a high-precision chemical propulsion solution of orbital transfer from GTO to GEO under a single observation station constraint condition is obtained. The method has high universality, and can be easily expanded to IGSO orbital t