0.6505 + 2.978 \eta \chi_- + 0.4262 \chi_+ \chi_- + 106.1 \eta^3 + 67.45 \eta^2 \chi_+ - 12.08 \eta^2 \chi_- - 1.738 \eta \chi_+ \chi_- - 2041 \eta^4 - 614.2 \eta^3 \chi_+ + 5974 \eta^5 + 1387 \eta^4 \chi_+