Are there currently any mods that are part of RO (or not if anyone here knows) that add the orbital elements regression of nodes and rotation of apsides that occur due to oblateness of celestial bodies? I want to place spacecraft in sun-synchronous orbits but so far I haven't found any mods that have this capability. Celestial bodies would need the J2 parameter (a measurement of oblateness), and then when a spacecraft is in orbit, the regression of nodes and rotation of apsides would be calculated based on semimajor axis, eccentricity, inclination, planet/moon radius, and gravitational parameter. The argument of periapsis and longitude of the ascending node would then change at that constant rate
