Orbit Design And Optimization For The Gravitational Wave Detection Of Lisa

The Laser Interferometer Space Antenna (LISA) is a joint ESA-NASA mission for detecting low-frequency gravitational waves, by using accurate distance measurements with laser interferometry between three spacecrafts, which will be launched around 2018 and one year later reach their operational orbits around the Sun. In order to operate successfully, it is crucial for the constellation of the three spacecrafts to have extremely high stability. Based on the study of operational orbits for a 2015 launch, we designed the operational orbits of beginning epoch on 2019-03-01, analyzed the acceptable error range of the injection, and introduced the method of orbit design and optimization.