Definition:Hayford Spheroid/Geodetic Constants
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Hayford Spheroid: Geodetic Constants
The geodetic constants for the Hayford spheroid are given below:
| Latitude | Length of $1$ Minute of Longitude: $\mathrm m$ | Length of $1$ Minute of Latitude: $\mathrm m$ | Local Gravitational Constant: $\mathrm {m \, s^{-2} }$ |
|---|---|---|---|
| $0 \degrees$ | $1 \, 855 \cdotp 398$ | $1 \, 842 \cdotp 925$ | $9 \cdotp 780 \, 350$ |
| $15 \degrees$ | $1 \, 792 \cdotp 580$ | $1 \, 844 \cdotp 170$ | $9 \cdotp 783 \, 800$ |
| $30 \degrees$ | $1 \, 608 \cdotp 174$ | $1 \, 847 \cdotp 580$ | $9 \cdotp 793 \, 238$ |
| $45 \degrees$ | $1 \, 314 \cdotp 175$ | $1 \, 852 \cdotp 256$ | $9 \cdotp 806 \, 154$ |
| $60 \degrees$ | $930 \cdotp 047$ | $1 \, 856 \cdotp 951$ | $9 \cdotp 819 \, 099$ |
| $75 \degrees$ | $481 \cdotp 725$ | $1 \, 860 \cdotp 401$ | $9 \cdotp 828 \, 593$ |
| $90 \degrees$ | $0$ | $1 \, 861 \cdotp 666$ | $9 \cdotp 832 \, 072$ |
Sources
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $2$. Physical Constants and Conversion Factors: Table $2.5$ Factors for Converting Customary U.S. Units to SI Units