Division 2.5.4

The deviation between IVS location and true location, d_IVS shall be calculated using the following equations:

• Δφ = φ_IVS – φ_true

• Δλ = λ_IVS – λ_true

• $${\phi }_m=\frac{{\phi }_{\mathrm{IVS}}+{\phi }_{\mathrm{true}}}{2}$$
• $$d_{\mathrm{IVS}}=R\sqrt{{\left(\mathrm{\Delta \phi }\right)}^2+{\left(\cos \left({\phi }_m\right)\mathrm{\Delta \lambda }\right)}^2}$$

where: