10 Thruster Rotation Angle Control During Contactless Removal …
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Fig. 10.2 Projections of relative distance (m) onto the transversal depending on time (day): a–
c control for lateral displacements only. The average distance when controlling the longitudinal
component of the thrust vector: d–f 45 m, g–i 30 m, j–i 20 m. Period of the oscillation: a, d, g,
j 10 min, b, e, h, k 1 h, c, f, i, l 3 h
As a result, the increment in orbit altitude is 60 km only. With the relative range
reduction down to 30 m for the periods of 10 min, 1 h, and 3 h, it is possible to raise
the orbit for 90, 85, and 70 km, respectively. With an average relative range of 20 m,
the orbit can be raised for 95 km. At the same time, for the period of 3 h, the process
of the SDO removal becomes impossible.
It can be seen from the below graphs that the smaller distance between the objects,
the higher thrust impulse is transferred to SDO, which reduces the time of the SDO
removal from the GEO region. If the average range is 20 m, we obtain the average
relative range projection on the transversal of about 30 m. This is due to limitations
on the acceleration magnitude, which can be realized using EPS considered in the