Research on Control Method of Keeping Flight Formation by Using SDRE on the Sun-Earth Libration Points

Table 1

Basic constants of L2 point in the sun-earth system.

Class (shorthand)	Value
Solar mass ()	kg
Earth mass + lunar mass ()	kg +  kg
Distance from the point to the sun ()	km
Distance from the point to the earth – moon system ()	km
The orbital eccentricity ()	0.01670862
Distance from the point to the L2 libration point ()	km