JAXA is developing Space Debris Monitor (SDM) to be installed on the HTV-X3. SDM will be installed as part of MACS, a debris measurement system being developed by NASA. The sensitivity of SDM ranges from 100 micrometers to several millimeters, and the goal is to get data around an altitude of 1,000 km, which is difficult to observe from the ground and for which observation data is few. This time, we are planning to measure debris at an altitude of 400 to 500 km, which is the flight altitude of the HTV-X, for a period of about one year to demonstrate the operation of the sensor. SDM is a film-shaped sensor with 50 micrometer copper lines spaced 50 micrometers apart on the film surface. These are called sensor lines, and current flows through all sensor lines. When debris impacts, the sensor lines are disconnected and no current flows through them. By measuring the number of broken sensor lines, the size of the debris impact can be measured. We are currently developing components for the production of FM. This presentation will report on the current development status.
NAKANISHI et al. (Fri,) studied this question.
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