The RIS on the ADEOS

2. The RIS on the ADEOS

The RIS is a hollow retroreflector having an effective diameter of 0.5 m. A spherical mirror with a very small curvature is used for one of the three mirrors forming the corner cube, to optimize the ground pattern of the beam reflected by RIS on ADEOS, which moves with a velocity of approximately 7km/s. Figure 2-1 shows a photograph of the RIS Proto-Flight Model (RIS PFM) manufactured by the PLX Inc based on the optical design by NIES. The mirror panels are made of quartz with light weighted structure. The surface was finished with a silver-based optical coating. The housing is made of aluminum.

Fig. 2-1 Photograph of RIS PFM.

3. Ground system for the RIS experiment
4. Results - Active tracking using image of the RIS
5. Optical characteristics of the RIS
6. Spectrum Measurement with the RIS
7. Orbital Determination of ADEOS by laser ranging to the RIS
8. Future perspective
9. Publications

Return to RIS home page

1. Outline of the RIS Experiment