Table 4: The major axes, A1 and A2, of the 1st and 2nd harmonic ellipses, and the constant terms, $q_{\rm o}$ and $u_{\rm o}$, from Fourier fittings to the ${\it UBVRI}$ polarization data. Estimates of the orbital inclination, i, and the orientation angle (line of nodes), $\Omega $, from BME78 models (2nd harmonic) are also given. The interstellar polarization components, $q_{\rm is}$ and $u_{\rm is}$, are determined from the scattering model fittings (Sect. 4).
JD-2 400 000 Parameter U B V R I
44 867-45 301 A1(%) 0.30 $\pm$ 0.06 0.20 $\pm$ 0.04 0.12 $\pm$ 0.03 0.07 $\pm$ 0.02 0.09 $\pm$ 0.02
  A2(%) 0.23 $\pm$ 0.06 0.17 $\pm$ 0.04 0.11 $\pm$ 0.03 0.06 $\pm$ 0.02 0.03 $\pm$ 0.02
  qo(%) 0.36 $\pm$ 0.03 0.44 $\pm$ 0.01 0.36 $\pm$ 0.01 0.30 $\pm$ 0.01 0.27 $\pm$ 0.01
  uo(%) 0.45 $\pm$ 0.02 0.46 $\pm$ 0.02 0.47 $\pm$ 0.01 0.43 $\pm$ 0.01 0.38 $\pm$ 0.01
  $i(\hbox{$^\circ$ })$ 85 $\pm$ 8 78 $\pm$ 7 72 $\pm$ 10 70 $\pm$ 13 89 $\pm$ 21
  $\Omega(\hbox{$^\circ$ })$ 92 $\pm$ 8 87 $\pm$ 7 106 $\pm$ 12 61 $\pm$ 16 62 $\pm$ 17
45 562-46 000 A1(%) 0.19 $\pm$ 0.06 0.21 $\pm$ 0.04 0.13 $\pm$ 0.03 0.10 $\pm$ 0.02 0.10 $\pm$ 0.02
  A2(%) 0.26 $\pm$ 0.06 0.28 $\pm$ 0.04 0.16 $\pm$ 0.03 0.10 $\pm$ 0.02 0.06 $\pm$ 0.02
  qo(%) 0.24 $\pm$ 0.03 0.31 $\pm$ 0.02 0.26 $\pm$ 0.01 0.24 $\pm$ 0.01 0.21 $\pm$ 0.01
  uo(%) 0.39 $\pm$ 0.02 0.47 $\pm$ 0.02 0.48 $\pm$ 0.01 0.43 $\pm$ 0.01 0.39 $\pm$ 0.01
  $i(\hbox{$^\circ$ })$ 80 $\pm$ 7 77 $\pm$ 5 86 $\pm$ 5 68 $\pm$ 7 89 $\pm$ 10
  $\Omega(\hbox{$^\circ$ })$ 106 $\pm$ 7 106 $\pm$ 5 98 $\pm$ 5 99 $\pm$ 10 106 $\pm$ 9
51 796-51 829 A1(%) 0.16 $\pm$ 0.06 0.18 $\pm$ 0.05 0.12 $\pm$ 0.04 0.07 $\pm$ 0.02 0.19 $\pm$ 0.04
  A2(%) 0.12 $\pm$ 0.06 0.13 $\pm$ 0.05 0.10 $\pm$ 0.04 0.05 $\pm$ 0.02 0.11 $\pm$ 0.04
  qo(%) 0.20 $\pm$ 0.02 0.32 $\pm$ 0.02 0.30 $\pm$ 0.01 0.28 $\pm$ 0.01 0.20 $\pm$ 0.01
  uo(%) 0.44 $\pm$ 0.02 0.45 $\pm$ 0.02 0.51 $\pm$ 0.02 0.46 $\pm$ 0.01 0.37 $\pm$ 0.01
  $i(\hbox{$^\circ$ })$ 100 $\pm$ 16 97 $\pm$ 12 91 $\pm$ 12 93 $\pm$ 12 95 $\pm$ 12
  $\Omega(\hbox{$^\circ$ })$ 102 $\pm$ 15 92 $\pm$ 11 121 $\pm$ 11 84 $\pm$ 11 92 $\pm$ 10
44 867-46 000 $q_{\rm is}$(%) 0.19 $\pm$ 0.02 0.28 $\pm$ 0.01 0.27 $\pm$ 0.01 0.25 $\pm$ 0.01 0.23 $\pm$ 0.01
  $u_{\rm is}$(%) 0.45 $\pm$ 0.02 0.47 $\pm$ 0.01 0.49 $\pm$ 0.01 0.44 $\pm$ 0.01 0.39 $\pm$ 0.01


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