Daylight space debris laser ranging

Michael A. Steindorfer (), Georg Kirchner, Franz Koidl, Peiyuan Wang, Beatriz Jilete and Tim Flohrer
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Michael A. Steindorfer: Austrian Academy of Sciences
Georg Kirchner: Austrian Academy of Sciences
Franz Koidl: Austrian Academy of Sciences
Peiyuan Wang: Austrian Academy of Sciences
Beatriz Jilete: GMV at European Space Agency
Tim Flohrer: European Space Agency

Nature Communications, 2020, vol. 11, issue 1, 1-6

Abstract: Abstract Satellite laser ranging allows to measure distances to satellites equipped with retroreflectors in orbits up to 36000 km. Utilizing a higher powered laser, space debris laser ranging detects diffuse reflections from defunct satellites or rocket bodies up to a distance of 3000 km. So far space debris laser ranging was only possible within a few hours around twilight while it is dark at the satellite laser ranging station and space debris is illuminated by the sun. Here we present space debris laser ranging results during daylight. Space debris objects are visualized against the blue sky background and biases corrected in real-time. The results are a starting point for all space debris laser ranging stations to drastically increase their output in the near future. A network of a few stations worldwide will be able to improve orbital predictions significantly as necessary for removal missions, conjunction warnings, avoidance maneuvers or attitude determination.

Date: 2020
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DOI: 10.1038/s41467-020-17332-z

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