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Residual magnetic moment of JAS-2 was measured at ISAS (Institute of Space and Astronautical Science) in February 1996. As the attitude control of JAS-2 uses magnetic torque, it is necessary to know magnetic moment of itself, which is out of the design. In the Helmholtz coil, like a spherical cage, JAS-2 rotates and if there be some magnetic moment, current will be induced in the coil. Thus residual magnetic moment is measured and we verified that it was less than ten per cent of magnetic moment to be produced by magnetic torquer. The residual moment may not have any effect on the attitude control.
* Helmholtz coil
* JAS-2 is rotating inside the coil.
* Data collecting desk
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