Fig.1

Diagrammatic sketch of space based telescope observation"

Fig.2

Flow of the initial orbit determination algorithm for circular orbit constraints"

Fig.3

Initial admissible region of (ρ, ${\dot \rho }$) constrained by Conditions 1, 2, and 4"

Fig.4

Initial admissible region of (ρ, ${\dot \rho }$) constrained by Conditions 1 to 4"

Fig.5

Triangular mesh division of the initial region"

Fig.6

Admissble region of (ρ, ${\dot \rho }$) constraint by Conditions 1 to 4 after mesh division"

Fig.7

Multi-frame superimposed image with inertial fixed observation mode"

Fig.8

Experimental scheme for monitoring low-orbit space-based space objects"

Fig.9

Angle measurement accuracy before rolling shutter correction"

Fig.10

Angle measurement accuracy after rolling shutter correction"

Fig.11

Angle measurement accuracy after aberration correction"

Table 1

Initial parameters estimation results"

Fig.12

Gradually narrowed admissible region"

Fig.13

Assemble region search results of (ρ, ${\dot \rho }$)"

Table 2

Initial orbit and accuracy of admissible region method using 363 s observation"

Table 3

Initial orbit and accuracy of admissible region method using 244 s observation"

Table 4

Initial orbit and accuracy of admissible region method using 124 s observation"

Table 5

Initial orbit and accuracy of the circular orbit assumption method using 363 s observation"

Table 6

Initial orbit and accuracy of the circular orbit assumption method using 4 s observation"

Table 7

Initial orbit and accuracy of the circular orbit assumption+admissible region method using 4 s observation"