Problem descriptions and definitions
Conventional or practical methods
Covariance Based Track Association (CBTA)
Xiangxu Lei, Kunpeng Wang, Pin Zhang, Teng Pan, Huaifeng Li, Jizhang Sang, and Donglei He, “A geometrical approach to association of space-based very short-arc LEO tracks”, Advances in Space Research, vol. 62, Aug. 2018, pp. 542–553.
space-based angles-only very short-arc (SBVSA) LEO tracks