Abstract
Space debris laser ranging was achieved with a 60 W, 200 Hz, 532 nm
nanosecond slab, single-frequency green laser at the Shanghai Astronomical
Observatory’s 60 cm satellite laser ranging system. There were 174 passes
of space debris measured in 2017, with the minimum radar cross section
(RCS) being 0.25 m2 and the highest ranging precision up to
13.6 cm. The RCS of space debris measured with the farthest distances in
174 passes was analyzed. The results show that the farthest measurement
distance (R) and RCS (S) were fitted to R = 1388.159S0.24312,
indicating that this laser can measure the distance of 1388.159 km at an
RCS of 1 m2, which is very helpful to surveillance and research
on low-Earth-orbit space debris.
© 2019 Chinese Laser Press
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