export type BesselianElements = { tMax: number; t0: number; dT: number; x: Array; y: Array; d: Array; l1: Array; l2: Array; mu: Array; tanF1: number; tanF2: number; latGreatestEclipse: number; lonGreatestEclipse: number; }; export type BesselianElementsArray = [ number, number, number, [ number, number, number, number ], [ number, number, number, number ], [ number, number, number, number ], [ number, number, number, number ], [ number, number, number, number ], [ number, number, number, number ], number, number, number, number ];