Table 2: Near infrared line fluxes observed in knot B.
Line id. $\lambda$ $F\pm\Delta F$a Line id. $\lambda$ $F\pm\Delta F$a
  ($\mu $m) (10-15 erg cm-2 s-1)   ($\mu $m) (10-15 erg cm-2 s-1)
H2 lines
2-0 S(9) 1.053 0.66 $\pm$ 0.07 3-1 Q(7) 1.368 0.4 $\pm$ 0.1
2-0 S(7) 1.064 0.62 $\pm$ 0.04  1-0 S(9) 1.688 0.7 $\pm$ 0.1
2-0 S(6) 1.073 0.4 $\pm$ 0.1  1-0 S(8)d 1.715 0.6 $\pm$ 0.1
2-0 S(5) 1.085 0.69 $\pm$ 0.05  1-0 S(7)e 1.748 3.9 $\pm$ 0.1
2-0 S(4) 1.100 0.3 $\pm$ 0.2b  1-0 S(6) 1.788 1.86 $\pm$ 0.05
3-1 S(9)+3-1 S(10)+3-1S(11) 1.120-1.120-1.121 1.4 $\pm$ 0.5b  1-0 S(3) 1.958 15.4 $\pm$ 0.2
3-1 S(7) 1.130 0.8 $\pm$ 0.3b  2-1 S(4) 2.004 0.42 $\pm$ 0.09
2-0 S(2) 1.138 0.6 $\pm$ 0.1  1-0 S(2) 2.034 4.20 $\pm$ 0.06
3-1 S(5) 1.152 0.9 $\pm$ 0.1  2-1 S(3) 2.073 1.63 $\pm$ 0.04
2-0 S(1) 1.162 1.2 $\pm$ 0.1  1-0 S(1) 2.122 9.59 $\pm$ 0.05
3-1 S(3) 1.186 0.8 $\pm$ 0.1  2-1 S(2) 2.154 0.51 $\pm$ 0.05
2-0 S(0)+4-2 S(10) 1.189-1.190 0.4 $\pm$ 0.1  3-2 S(3) 2.201 0.3 $\pm$ 0.1
4-2 S(9) 1.196 0.4 $\pm$ 0.1  1-0 S(0) 2.223 2.58 $\pm$ 0.05
4-2 S(8)+4-2 S(11) 1.198-1.199 0.5 $\pm$ 0.2b  2-1 S(1) 2.248 1.0 $\pm$ 0.2
4-2 S(7) 1.205 0.3 $\pm$ 0.1  2-1 S(0) 2.355 0.32 $\pm$ 0.08
3-1 S(2) 1.207 0.4 $\pm$ 0.1  3-2 S(1) 2.386 0.5 $\pm$ 0.1
4-2 S(5) 1.226 0.4 $\pm$ 0.1  1-0 Q(1) 2.407 10.9 $\pm$ 0.3
3-1 S(1) 1.233 0.5 $\pm$ 0.1  1-0 Q(2) 2.413 4.5 $\pm$ 0.4
2-0 Q(1) 1.238 0.55 $\pm$ 0.05   1-0 Q(3) 2.424 9.6 $\pm$ 0.4
2-0 Q(2)+4-2 S(4) 1.242-1.242 0.39 $\pm$ 0.04  1-0 Q(4) 2.437 4.2 $\pm$ 0.5
2-0 Q(3)c 1.247 0.56 $\pm$ 0.04  1-0 Q(5) 2.455 3.2 $\pm$ 0.5
2-0 O(3) 1.335 0.39 $\pm$ 0.07  1-0 Q(6) 2.476 2.2 $\pm$ 0.4
3-1 Q(5)+4-2S(0) 1.342-1.342 0.5 $\pm$ 0.2b  1-0 Q(7) 2.500 6.2 $\pm$ 0.6
Ionic lines
 [C I]  $\rm ^1D_{2}-^3\!P_{1}$ 0.983 0.98 $\pm$ 0.06  [Fe II] a $\rm ^4D_{5/2}-a^6D_{5/2}$ 1.295 1.4 $\pm$ 0.2
 [C I]  $\rm ^1D_{2}-^3\!P_{2}$ 0.985 2.33 $\pm$ 0.05  [Fe II] a $\rm ^4D_{7/2}-a^6D_{7/2}$ 1.321 2.9 $\pm$ 0.2
 [S II]  $\rm ^2P_{3/2}-^2\!D_{3/2}$ 1.029 0.21 $\pm$ 0.07  [Fe II] a $\rm ^4D_{5/2}-a^6D_{3/2}$ 1.328 0.6 $\pm$ 0.1
 [S II]  $\rm ^2P_{3/2}-^2\!D_{5/2}$ 1.032 0.30 $\pm$ 0.07  [Fe II] a $\rm ^4D_{5/2}-a^4F_{9/2}$ 1.534 1.2 $\pm$ 0.2
 [S II]  $\rm ^2P_{1/2}-^2\!D_{3/2}$ 1.034 0.28 $\pm$ 0.09  [Fe II] a $\rm ^4D_{3/2}-a^4F_{7/2}$ 1.600 0.7 $\pm$ 0.2
 [S II]  $\rm ^2P_{1/2}-^2\!D_{5/2}$ 1.037 0.2 $\pm$ 0.1b  [Fe II] a $\rm ^4D_{7/2}-a^4F_{9/2}$ 1.644 8.2 $\pm$ 0.1
  HeI 2 $\rm ^3S-2^3P^0$ 1.083 0.53 $\pm$ 0.05  [Fe II] a $\rm ^4D_{1/2}-a^4F_{5/2}$ 1.664 0.28 $\pm$ 0.07
 Pa$\gamma$ 1.094 <0.8f  [Fe II] a $\rm ^4D_{5/2}-a^4F_{7/2}$ 1.678 0.58 $\pm$ 0.08
 [Fe II] a $\rm ^4D_{7/2}-a^6D_{9/2}$ 1.257 8.7 $\pm$ 0.1  [Fe II] a $\rm ^4D_{3/2}-a^4F_{3/2}$ 1.798 0.4 $\pm$ 0.1
 [Fe II] a $\rm ^4D_{3/2}-a^6D_{3/2}$ 1.279 1.1 $\pm$ 0.2  [Fe II] a $\rm ^4D_{7/2}-a^4F_{7/2}$ 1.810 3.4 $\pm$ 0.4
 Pa$\beta$ 1.283 1.5 $\pm$ 0.4  Br$\gamma$ 2.166 <0.2f
Notes: a The uncertainty refers to the rms of the local baseline. b Signal-to-noise ratio between 2 and 3. c Blended with [Fe II] a $\rm ^4D_{3/2}-a^6D_{5/2}$ ($\lambda$ = 1.248 $\mu $m). d Blended with [Fe II] a $\rm ^4D_{3/2}-a^4F_{5/2}$ ($\lambda$ = 1.711 $\mu $m). e Blended with [Fe II] a $\rm ^4P_{3/2}-a^4D_{7/2}$ ($\lambda$ = 1.749 $\mu $m). f 3 sigma upper limit.

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