Elliptical Sun-Synchronous Orbits with Line of Apsides Lying in or Near the Equatorial Plane
Beyond GEO - using elliptical orbit constellations to multiply the space real estate
The Orbital Perturbation Environment for the COBRA and COBRA Teardrop Elliptical Constellations
The Orbital Perturbation Environment for the COBRA and COBRA Teardrop Elliptical Constellations