发明名称 |
ANGLES-ONLY INITIAL ORBIT DETERMINATION (IOD) |
摘要 |
A methodology for initial orbit determination of an object about an astronomical body searches a grid of possible boundary values on the range-to-object over the observation interval to find the grid point and corresponding initial orbit that best fits all of the more than three (N) angles-only observations according to an error metric. The search is conducted by solving a boundary-value problem for different grid points. The state vector is propagated to determine estimated observation directions for the remaining N−2 observations. The grid point (and initial orbit) that best fit all of the observations is selected. For efficiency, the search may start with a broad but coarse initial grid and increase the resolution of the grid as the search converges to a solution. |
申请公布号 |
EP3063069(A1) |
申请公布日期 |
2016.09.07 |
申请号 |
EP20140793349 |
申请日期 |
2014.10.01 |
申请人 |
RAYTHEON COMPANY |
发明人 |
COLEMAN, GARY D.;SILNY, JOHN F. |
分类号 |
B64G1/24;B64G3/00 |
主分类号 |
B64G1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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