A space traffic management method of ensuring flight safety, comprising:
- connecting space traffic management devices individually mounted in business devices with each other via a communication line, the business devices including a mega-constellation business device which manages a mega-constellation consisting of 100 or more satellites, and a first business device and a second business device which manage a space object;
- specifying, by a space traffic management device mounted in the mega-constellation business device, a representative satellite, which is a satellite selected from a mega-constellation satellite group flying on orbits having a same nominal orbital altitude;
- storing, in the space traffic management device in the mega-constellation business device, quasi-real-time high-accuracy orbital information of the representative satellite and orbital information relative values of constituent satellites other than the representative satellite, relative to the representative satellite;
- sharing, by the space traffic management device in the mega-constellation business device, the quasi-real-time high-accuracy orbital information of the representative satellite and the orbital information relative values of the constituent satellites relative to the representative satellite, with the space traffic management device mounted in the second business device;
- recording, in the second business device, the quasi-real-time high-accuracy orbital information of the representative satellite, the orbital information relative values of the constituent satellites relative to the representative satellite, and information of the space object, the quasi-real-time high-accuracy orbital information and the orbital information relative values being acquired from the space traffic management device mounted in the mega-constellation business device, the information of the space object being acquired from the space traffic management device mounted in the first business device, wherein the second business device includes a danger analysis device and a danger avoidance action assist device;
- deriving, by the danger analysis device, collision avoidance information including a timing or a condition at which or under which collision does not occur with any one of satellites included in the mega-constellation satellite group;
- notifying, by the danger avoidance action assist device, the first business device of the collision avoidance information, and
- controlling at least one of the satellites in the mega-constellation based on the collision avoidance information.