Satellite Doppler positioning of off-lying islands.
Since 1980, the Hydrographic Department has been measuring the latitude and longitude of off-lying islands,and has been collecting the data necessary for connection of the Tokyo Datum and the worldwide geodetic system, by using artificial satellites. Outline of the Marine Geodetic Control Network is as follows: 1 . Fiducial Point For connection of the Tokyo Datum and worldwide geodetic system, a fiducial point is established at the Simosato Hydrographic Observatory. Satellite Laser Ranging (SLR) has been carried out here by using the Lageos and Ajisai satellites. 2 . First Order Control Points For connection of off-lying islands and the fiducial point, Transportable Laser Ranging System was constructed. The SLR observation has b巴endone on sev巴ralislands by using the Ajisai satellites. 3 . Second Order Control Points On smaller islands, second order control points have been set up. The positions of these points have been measured by using the NNSS satellites. This report deals with the outline of the observations and the tentative results of the NNSS observations since 1980.
| Main Authors: | , , |
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| Format: | Journal Contribution biblioteca |
| Language: | Japanese |
| Published: |
1992
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| Online Access: | http://hdl.handle.net/1834/16090 |
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