<p>Most of the geodetic satellites observed with Satellite Laser Ranging (SLR) are placed in near-circular orbits. This paper uses simulations to discuss the advantages of launching a satellite into an eccentric orbit from the perspective of the quality of geodetic parameters. For the first time, we evaluate how eccentricity, inclination, and semi-major axis affect the accuracy of determining SLR-based parameters, including station coordinates, Earth rotation parameters, geocenter coordinates, and low-degree Earth's gravity field coefficients. We found that eccentric orbits substantially improve gravity field recovery, especially for low-degree zonal, tesseral, and sectorial coefficients. The greatest impact is observed for the odd-zonal terms: the formal errors for C₃₀ and C₅₀ decrease by over 90% compared to the current 10-satellite constellation. The even-degree zonal coefficients (C₂₀, C₄₀, C₆₀) also improve, achieving gains of 70–80% at optimal inclinations. Even-degree coefficients prefer eccentric orbits, and their importance increases substantially with a large semi-major axis, leading to a more noticeable improvement in the quality of the estimated coefficients. To minimize formal errors of the gravity-field coefficients, inclinations of 20–40° or 140–160° are favored for even-degree zonal and tesseral coefficients. In contrast, sectorial and odd-degree zonal coefficients prefer inclinations of 75–105°, particularly for satellites with a semi-major axis of 7800&#xa0;km. Additionally, eccentric orbits improve visibility from the southern hemisphere for specific perigee placements and increase the separability of the coefficients of the gravity potential in terms of the correlations.</p>