make_array_or_tensor([sec._prot for sec in self._secondaries]),
make_array_or_tensor([sec._t0 for sec in self._secondaries]),
make_array_or_tensor([sec._theta0 for sec in self._secondaries]),
make_array_or_tensor([sec._porb for sec in self._secondaries]),
make_array_or_tensor([sec._a for sec in self._secondaries]),
make_array_or_tensor([sec._ecc for sec in self._secondaries]),
make_array_or_tensor([sec._w for sec in self._secondaries]),
make_array_or_tensor([sec._Omega for sec in self._secondaries]),
After Change
make_array_or_tensor([sec._prot for sec in self._secondaries]),
make_array_or_tensor([sec._t0 for sec in self._secondaries]),
make_array_or_tensor([sec._theta0 for sec in self._secondaries]),
self._get_periods(),
make_array_or_tensor([sec._ecc for sec in self._secondaries]),
make_array_or_tensor([sec._w for sec in self._secondaries]),
make_array_or_tensor([sec._Omega for sec in self._secondaries]),
