@spiceErrorCheck<EOL>def oscelt(state, et, mu):
state = stypes.toDoubleVector(state)<EOL>et = ctypes.c_double(et)<EOL>mu = ctypes.c_double(mu)<EOL>elts = stypes.emptyDoubleVector(<NUM_LIT:8>)<EOL>libspice.oscelt_c(state, et, mu, elts)<EOL>return stypes.cVectorToPython(elts)<EOL>
Determine the set of osculating conic orbital elements that
corresponds to the state (position, velocity) of a body at
some epoch.

http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/oscelt_c.html

:param state: State of body at epoch of elements.
:type state: Float Array of 6 elements.
:param et: Epoch of elements.
:type et: float
:param mu: Gravitational parameter (GM) of primary body.
:type mu: float
:return: Equivalent conic elements
:rtype: Float Array of 8 elements.