/**
 * Eccentricity - Change orbital eccentricity
 */
import type { KosConnection } from '../../../transport/kos-connection.js';
import { type ManeuverResult } from '../shared.js';
/**
 * Create a maneuver node to change orbital eccentricity.
 * Eccentricity ranges from 0 (circular) to just under 1 (parabolic).
 *
 * @param conn kOS connection
 * @param newEcc Target eccentricity (0 to <1)
 * @param timeRef When to execute: 'APOAPSIS', 'PERIAPSIS', 'X_FROM_NOW', 'ALTITUDE'
 */
export declare function changeEccentricity(conn: KosConnection, newEcc: number, timeRef?: string): Promise<ManeuverResult>;
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