Table 3: Relative line fluxes.
  I (NE) II (S) III (NW) IV (CW) IVa (CW) V (CE) Va (CE)
Line (Å) $F^{\rm 1,2}$ $F^{\rm 1,2}$ $F^{\rm 1,2}$ $F^{\rm 1,2}$ $F^{\rm 1,2}$ $F^{\rm 1,2}$ $F^{\rm 1,2}$
4861 H$\beta$ - 8 (4) 8 (12) 12 (8) 8 (7) 10 (20) 9(8)
5007 [O III] 5 (2) - 5 (8) 3 (2) - 3 (7) 2(2)
5200 [N I] - 5 (4) - 2 (3) 10 (14) - -
6300 [O I] 14 (9) 12 (13) 8 (13) 19 (19) 41 (51) 18 (61) 5 (7)
6364 [O I] 5 (3) 5 (5) 2 (4) 5 (5) 13 (18) 5 (15) 2 (1)
6548 [N II] 34 (21) 16 (18) 25 (44) 29 (29) 38 (43) 17 (54) 19 (26)
6563 H$\alpha $ 100 (58) 100 (94) 100(167) 100 (90) 100 (110) 100 (204) 100(129)
6584 [N II] 113 (66) 53 (51) 78 (135) 93 (92) 123 (137) 54 (159) 60(79)
6716 [S II] 66 (46) 47 (45) 49 (89) 62 (64) 116 (132) 29 (93) 34(48)
6731 [S II] 49 (35) 36 (35) 37 (68) 47 (49) 87 (99) 22 (69) 25 (36)
Absolute H$\alpha $ flux $^{\rm 3}$ 31 60 66 50 62 48 67
H$\alpha $/H$\beta$ - 13 (4) 12 (12) 8.2 (8) 12 (7) 10 (20) 11 (8)
[N I]/H$\beta$ - 0.6 (3) - 0.2 (3) 1.3 (6) - -
[N II]/H$\alpha $ 1.5 (42) 0.7 (46) 1.03 (100) 1.2 (62) 1.6 (83) 0.7 (122) 0.8 (65)
[S II]/H$\alpha $ 1.15 (45) 0.89 (49) 0.86 (93) 1.09 (60) 2.03 (91) 0.51(107) 0.59 (54)
I(6716)/I(6731) 1.35 (28) 1.31(28) 1.32 (54) 1.32 (39) 1.33 (79) 1.32 (55) 1.36 (29)
$c^{\rm 4}$ - 1.9 [0.3] 1.9 [0.1] 1.3 [0.2] 1.9 [0.2] 1.58 [0.07] 1.7 [0.2]
E(B-V) - 1.3 [0.2] 1.26 [0.07] 0.9 [0.1] 1.3 [0.1] 1.05 [0.05] 1.1 [0.1]
$n_{\rm e}$ (cm-3) 70 $\pm$ 50 110 $\pm$ 50 100 $\pm$ 20 100 $\pm$ 30 90 $\pm$ 20 100 $\pm$ 20 60 +50-40
1 Uncorrected for interstellar extinction.

2 Listed fluxes are a signal to noise weighted average of the individual fluxes.

3 In units of 10-17 erg s-1 cm-2 arcsec-2.

4 The logarithmic extinction is determined as c = 1/0.331 $\cdot$ log((H$\alpha $/H$\beta$) $_{\rm obs}$/3).

Numbers in parentheses represent the signal to noise ratio of the quoted fluxes.
The 1$\sigma$ error is given in square brackets for the logarithmic extinction.
All fluxes are normalized to F(H$\alpha $) = 100.

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