# Commission Delegated Regulation (EU) 2017/79 of 12 September 2016 establishing detailed technical requirements and test procedures for the GB type-approval of motor vehicles with respect to their 112-based eCall in-vehicles systems, of 112-based eCall in-vehicle separate technical units and components and supplementing and amending Regulation (EU) 2015/758 of the European Parliament and of the Council with regard to the exemptions and applicable standards (Text with EEA relevance), Division 2.2.2.13

Extent: E+W+S+N.I.

For longitude:
(5-1)
dLм=2 ×a×cosφ1−e2sin2φ×0,5″×π180×3600″×dL,
(5-2)
σLм=2 ×a×cosφ1−e2sin2φ×0,5″×π180×3600″×σL,
— аSemi-major axis of ellipsoid, metres
— efirst eccentricity, [0 – 1]
— φdetermined value of latitude, radians.

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Source: https://www.legislation.gov.uk/eur/2017/79/annex/VI/division/2/division/2.2/division/2.2.2/division/2.2.2.13 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-79/annex-VI/division-2/division-2.2/division-2.2.2/division-2.2.2.13
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.