R1iwtdZddlmZddlmZeddZeedZeedZeedZy ) z-Three earth-gravity models for use with SGP4.) namedtuple) getgravconst EarthGravityz)tumin mu radiusearthkm xke j2 j3 j4 j3oj2wgs72oldwgs72wgs84N) __doc__ collectionsrsgp4.propagationrrrrrV/home/cursorai/projects/iching/venv/lib/python3.12/site-packages/sgp4/earth_gravity.pyrsM3")/ j1 2l7+,l7+,r