Research Article
An Efficient Computation of Effective Ground Range Using an Oblate Earth Model
Table 2
Comparison of lengths of major axis using oblate spheroid Earth model from a launch city A (−100°, 30°).
| (Longitude, latitude) | Major axis length ND method (km) | Major axis length MF method (km) | Difference (m) |
| (60°, −30°) | 6378.14 | 6378.11 | 27.03 | (30°, −30°) | 6378.14 | 6378.11 | 25.84 | (75°, −30°) | 6378.14 | 6378.11 | 27.08 | (95°, −30°) | 6378.14 | 6378.11 | 27.11 | (10°, 25°) | 6378.14 | 6378.12 | 19.67 | (0°, 0°) | 6378.14 | 6378.11 | 26.93 | (−100°, −30°) | 6378.14 | 6378.14 | 0 |
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