Table 2: Observed relative line fluxes, on a scale where H $\beta =100$ .
$\lambda_{\rm obs}$ $F(\lambda)$ $I(\lambda)$ Ion $\lambda_{\rm lab}$ Mult Lower term Upper term g₁ g₂

1640.13 5.40E+00 3.09E+01 He II 1640.42 U12 2p+ 2P* 3d+ 2D 8 18

1907.53 1.09E+01 7.16E+01 [C III] 1907.00 2s2 1S 2p 3P 1 5

* * * C III] 1909.00 2s2 1S 2p 3P 1 3

3725.79 3.95E+01 5.85E+01 [O II] 3726.03 F1 2p3 4S* 2p3 2D* 4 4

* * * [O II] 3728.82 F1 2p3 4S* 2p3 2D* 4 6

3748.68 1.64E+00 2.42E+00 H 12 3750.15 H12 2p+ 2P* 12d+ 2D 8 *

3770.09
1.64E+00 2.40E+00 H 11 3770.63 H11 2p+ 2P* 11d+ 2D 8 *

3796.82 2.70E+00 3.93E+00 H 10 3797.90 H10 2p+ 2P* 10d+ 2D 8 *

3818.52 5.22E-01 7.54E-01 He I 3819.62 V22 2p 3P* 6d 3D 9 15

3834.30 4.29E+00 6.16E+00 H 9 3835.39 H9 2p+ 2P* 9d+ 2D 8 *

3867.83 9.61E+01 1.37E+02 [Ne III] 3868.75 F1 2p4 3P 2p4 1D 5 5

3887.82 1.18E+01 1.66E+01 H 8 3889.05 H8 2p+ 2P* 8d+ 2D 8 *

* * * He I 3888.65 V2 2s 3S 3p 3P* 3 9

3967.07 4.16E+01 5.74E+01 [Ne III] 3967.46 F1 2p4 3P 2p4 1D 3 5

* * * H 7 3970.07 H7 2p+ 2P* 7d+ 2D 8 98

4009.09 1.78E-01 2.43E-01 He I 4009.26 V55 2p 1P* 7d 1D 3 5

4025.50 2.05E+00 2.78E+00 He I 4026.21 V18 2p 3P* 5d 3D 9 15

4041.34 1.02E-01 1.38E-01 N II 4041.31 V39b 3d 3F* 4f 2[5] 9 11

4043.25 6.45E-02 8.68E-02 N II 4043.53 V39a 3d 3F* 4f 2[4] 7 9

4068.37 6.92E+00 9.25E+00 [S II] 4068.60 F1 2p3 4S* 2p3 2P* 4 4

* * * O II 4069.62 V10 3p 4D* 3d 4F 2 4

* * * O II 4069.89 V10 3p 4D* 3d 4F 4 6

4072.00 1.60E-01 2.13E-01 O II 4072.16 V10 3p 4D* 3d 4F 6 8

4076.05 2.46E+00 3.28E+00 [S II] 4076.35 F1 2p3 4S* 2p3 2P* 2 4

4097.12 1.12E+00 1.48E+00 N III 4097.33 V1 3s 2S 3p 2P* 2 4

* * O II 4097.25 V20 3p 4P* 3d 4D 2 4

* * O II 4097.26 V48b 3d 4F 4f G4* 8 10

* * O II 4098.24 V46a 3d 4F 4f D3* 4 6

4101.47 1.91E+01 2.53E+01 H 6 4101.74 H6 2p+ 2P* 6d+ 2D 8 72

4120.13 4.15E-01 5.45E-01 O II 4120.28 V20 3p 4P* 3d 4D 6 6

4143.71 1.06E-01 1.38E-01 He I 4143.76 V53 2p 1P* 6d 1D 3 5

4155.81 9.75E-02 1.26E-01 O II 4156.53 V19 3p 4P* 3d 4P 6 4

4266.71 4.26E-01 5.31E-01 C II 4267.15 V6 3d 2D 4f 2F* 10 14

4277.64 3.26E-01 4.05E-01 O II 4275.55 V67a 3d 4D 4f F4* 8 10

* * * O II 4275.99 V67b 3d 4D 4f F3* 4 6

* * * O II 4276.28 V67b 3d 4D 4f F3* 6 6

* * * O II 4276.75 V67b 3d 4D 4f F3* 6 8

* * * O II 4277.43 V67c 3d 4D 4f F2* 2 4

* * * O II 4277.89 V67b 3d 4D 4f F3* 8 8

4281.26 7.45E-02 9.25E-02 O II 4281.32 V53b 3d 4P 4f D2* 6 6

4340.23 3.85E+01 4.68E+01 H 5 4340.47 H5 2p+ 2P* 5d+ 2D 8 50

4348.91 2.52E-01 3.05E-01 O II 4349.43 V2 3s 4P 3p 4P* 6 6

4362.99
8.49E+00 1.02E+01 [O III] 4363.21 F2 2p2 1D 2p2 1S 5 1

4378.45 5.93E-01 7.10E-01 N III 4379.11 V18 4f 2F* 5g 2G 14 18

4387.73 6.16E-01 7.34E-01 He I 4387.93 V51 2p 1P* 5d 1D 3 5

4471.34 5.18E+00 5.99E+00 He I 4471.50 V14 2p 3P* 4d 3D 9 15

4477.59 3.19E-01 3.68E-01 O II 4477.90 V88 3d 2P 4f G3* 4 6

4510.91 3.19E-01 3.64E-01 N III 4510.91 V3 3s' 4P* 3p' 4D 4 6

4608.96 4.79E-01 5.27E-01 N II 4607.16 V5 3s 3P* 3p 3P 1 3

* * O II 4609.44 V92a 3d 2D 4f F4* 6 8

* * O II 4610.20 V92c 3d 2D 4f F2* 4 6

4634.12 6.39E-01 6.96E-01 N III 4634.14 V2 3p 2P* 3d 2D 2 4

4640.78 1.19E+00 1.29E+00 N III 4640.64 V2 3p 2P* 3d 2D 4 6

4676.50 1.28E-01 1.37E-01 O II 4676.24 V1 3s 4P 3p 4D* 6 6

4685.71 4.08E+00 4.36E+00 He II 4685.68 3.4 3d+ 2D 4f+ 2F* 18 32

4711.39 3.01E+00 3.19E+00 [Ar IV] 4711.37 F1 3p3 4S* 3p3 2D* 4 6

4713.12 7.64E-01 8.07E-01 He I 4713.17 V12 2p 3P* 4s 3S 9 3

4724.43 2.56E-01 2.70E-01 [Ne IV] 4724.15 F1 2p3 2D* 2p3 2P* 4 4

* * * [Ne IV] 4725.62 F1 2p3 2D* 2p3 2P* 4 2

4740.25 4.26E+00 4.46E+00 [Ar IV] 4740.17 F1 3p3 4S* 3p3 2D* 4 4

4861.45 1.00E+02 1.00E+02 H 4 4861.33 H4 2p+ 2P* 4d+ 2D 8 32

4922.15 1.55E+00 1.51E+00 O II 4924.53 V28 3p 4S* 3d 4P 4 6

4931.12 5.32E-01 5.24E-01 [O III] 4931.80 F1 2p2 3P 2p2 1D * *

4959.02 4.65E+02 4.48E+02 [O III] 4958.91 F1 2p2 3P 2p2 1D 3 5

5006.27 1.40E+03 1.32E+03 [O III] 5006.84 F1 2p2 3P 2p2 1D 5 5

5198.21 1.75E+00 1.54E+00 [N I] 5199.84 F1 2p3 4S* 2p3 2D* 4 4

5518.70 1.34E+00 1.06E+00 [Cl III] 5517.66 F1 2p3 4S* 2p3 2D* 4 6

5537.85 1.33E+00 1.04E+00 [Cl III] 5537.60 F1 2p3 4S* 2p3 2D* 4 4

5577.69 6.30E-01 4.90E-01 [O I] 5577.34 F3 2p4 1D 2p4 1S 5 1

5754.34 6.56E+00 4.87E+00 [N II] 5754.60 F3 2p2 1D 2p2 1S 5 1

5875.43 2.51E+01 1.81E+01 He I 5875.66 V11 2p 3P* 3d 3D 9 15

6300.37 1.37E+01 8.90E+00 [O I] 6300.34 F1 2p4 3P 2p4 1D 5 5

6312.08 6.19E+00 4.01E+00 [S III] 6312.10 F3 2p2 1D 2p2 1S 5 1

* * * He II 6310.80 5.16 5g+ 2G 16h+ 2H* 50 *

6364.06 3.67E+00 2.35E+00 [O I] 6363.78 F1 2p4 3P 2p4 1D 3 5

6548.20 1.02E+02 6.28E+01 [N II] 6548.10 F1 2p2 3P 2p2 1D 3 5

6563.02 4.73E+02 2.90E+02 H 3 6562.77 H3 2p+ 2P* 3d+ 2D 8 18

6583.62 3.13E+02 1.90E+02 [N II] 6583.50 F1 2p2 3P 2p2 1D 5 5

6678.35 7.09E+00 4.23E+00 He I 6678.16 V46 2p 1P* 3d 1D 3 5

6716.66 1.65E+01 9.78E+00 [S II] 6716.44 F2 2p3 4S* 2p3 2D* 4 6

6731.03 3.05E+01 1.80E+01 [S II] 6730.82 F2 2p3 4S* 2p3 2D* 4 4

7065.33 1.03E+01 5.70E+00 He I 7065.25 V10 2p 3P* 3s 3S 9 3

7135.85 4.51E+01 2.46E+01 [Ar III] 7135.80 F1 3p4 3P 3p4 1D 5 5

7280.90 9.57E-01 5.07E-01 He I 7281.35 V45 2p 1P* 3s 1S 3 1

7319.71 1.04E+01 5.48E+00 [O II] 7318.92 F2 2p3 2D* 2p3 2P* 6 2

* * * [O II] 7319.99 F2 2p3 2D* 2p3 2P* 6 4

7329.92 8.28E+00 4.35E+00 [O II] 7329.67 F2 2p3 2D* 2p3 2P* 4 2

* * * [O II] 7330.73 F2 2p3 2D* 2p3 2P* 4 4

**Table 2:** Observed relative line fluxes, on a scale where H $\beta =100$ .
$\lambda_{\rm obs}$	$F(\lambda)$	$I(\lambda)$	Ion	$\lambda_{\rm lab}$	Mult	Lower term	Upper term	g₁	g₂
1640.13	5.40E+00	3.09E+01	He II	1640.42	U12	2p+ 2P*	3d+ 2D	8	18
1907.53	1.09E+01	7.16E+01	[C III]	1907.00		2s2 1S	2p 3P	1	5
*	*	*	C III]	1909.00		2s2 1S	2p 3P	1	3
3725.79	3.95E+01	5.85E+01	[O II]	3726.03	F1	2p3 4S*	2p3 2D*	4	4
*	*	*	[O II]	3728.82	F1	2p3 4S*	2p3 2D*	4	6
3748.68	1.64E+00	2.42E+00	H 12	3750.15	H12	2p+ 2P*	12d+ 2D	8	*
3770.09	1.64E+00	2.40E+00	H 11	3770.63	H11	2p+ 2P*	11d+ 2D	8	*
3796.82	2.70E+00	3.93E+00	H 10	3797.90	H10	2p+ 2P*	10d+ 2D	8	*
3818.52	5.22E-01	7.54E-01	He I	3819.62	V22	2p 3P*	6d 3D	9	15
3834.30	4.29E+00	6.16E+00	H 9	3835.39	H9	2p+ 2P*	9d+ 2D	8	*
3867.83	9.61E+01	1.37E+02	[Ne III]	3868.75	F1	2p4 3P	2p4 1D	5	5
3887.82	1.18E+01	1.66E+01	H 8	3889.05	H8	2p+ 2P*	8d+ 2D	8	*
*	*	*	He I	3888.65	V2	2s 3S	3p 3P*	3	9
3967.07	4.16E+01	5.74E+01	[Ne III]	3967.46	F1	2p4 3P	2p4 1D	3	5
*	*	*	H 7	3970.07	H7	2p+ 2P*	7d+ 2D	8	98
4009.09	1.78E-01	2.43E-01	He I	4009.26	V55	2p 1P*	7d 1D	3	5
4025.50	2.05E+00	2.78E+00	He I	4026.21	V18	2p 3P*	5d 3D	9	15
4041.34	1.02E-01	1.38E-01	N II	4041.31	V39b	3d 3F*	4f 2[5]	9	11
4043.25	6.45E-02	8.68E-02	N II	4043.53	V39a	3d 3F*	4f 2[4]	7	9
4068.37	6.92E+00	9.25E+00	[S II]	4068.60	F1	2p3 4S*	2p3 2P*	4	4
*	*	*	O II	4069.62	V10	3p 4D*	3d 4F	2	4
*	*	*	O II	4069.89	V10	3p 4D*	3d 4F	4	6
4072.00	1.60E-01	2.13E-01	O II	4072.16	V10	3p 4D*	3d 4F	6	8
4076.05	2.46E+00	3.28E+00	[S II]	4076.35	F1	2p3 4S*	2p3 2P*	2	4
4097.12	1.12E+00	1.48E+00	N III	4097.33	V1	3s 2S	3p 2P*	2	4
	*	*	O II	4097.25	V20	3p 4P*	3d 4D	2	4
	*	*	O II	4097.26	V48b	3d 4F	4f G4*	8	10
	*	*	O II	4098.24	V46a	3d 4F	4f D3*	4	6
4101.47	1.91E+01	2.53E+01	H 6	4101.74	H6	2p+ 2P*	6d+ 2D	8	72
4120.13	4.15E-01	5.45E-01	O II	4120.28	V20	3p 4P*	3d 4D	6	6
4143.71	1.06E-01	1.38E-01	He I	4143.76	V53	2p 1P*	6d 1D	3	5
4155.81	9.75E-02	1.26E-01	O II	4156.53	V19	3p 4P*	3d 4P	6	4
4266.71	4.26E-01	5.31E-01	C II	4267.15	V6	3d 2D	4f 2F*	10	14
4277.64	3.26E-01	4.05E-01	O II	4275.55	V67a	3d 4D	4f F4*	8	10
*	*	*	O II	4275.99	V67b	3d 4D	4f F3*	4	6
*	*	*	O II	4276.28	V67b	3d 4D	4f F3*	6	6
*	*	*	O II	4276.75	V67b	3d 4D	4f F3*	6	8
*	*	*	O II	4277.43	V67c	3d 4D	4f F2*	2	4
*	*	*	O II	4277.89	V67b	3d 4D	4f F3*	8	8
4281.26	7.45E-02	9.25E-02	O II	4281.32	V53b	3d 4P	4f D2*	6	6
4340.23	3.85E+01	4.68E+01	H 5	4340.47	H5	2p+ 2P*	5d+ 2D	8	50
4348.91	2.52E-01	3.05E-01	O II	4349.43	V2	3s 4P	3p 4P*	6	6
4362.99	8.49E+00	1.02E+01	[O III]	4363.21	F2	2p2 1D	2p2 1S	5	1
4378.45	5.93E-01	7.10E-01	N III	4379.11	V18	4f 2F*	5g 2G	14	18
4387.73	6.16E-01	7.34E-01	He I	4387.93	V51	2p 1P*	5d 1D	3	5
4471.34	5.18E+00	5.99E+00	He I	4471.50	V14	2p 3P*	4d 3D	9	15
4477.59	3.19E-01	3.68E-01	O II	4477.90	V88	3d 2P	4f G3*	4	6
4510.91	3.19E-01	3.64E-01	N III	4510.91	V3	3s' 4P*	3p' 4D	4	6
4608.96	4.79E-01	5.27E-01	N II	4607.16	V5	3s 3P*	3p 3P	1	3
	*	*	O II	4609.44	V92a	3d 2D	4f F4*	6	8
	*	*	O II	4610.20	V92c	3d 2D	4f F2*	4	6
4634.12	6.39E-01	6.96E-01	N III	4634.14	V2	3p 2P*	3d 2D	2	4
4640.78	1.19E+00	1.29E+00	N III	4640.64	V2	3p 2P*	3d 2D	4	6
4676.50	1.28E-01	1.37E-01	O II	4676.24	V1	3s 4P	3p 4D*	6	6
4685.71	4.08E+00	4.36E+00	He II	4685.68	3.4	3d+ 2D	4f+ 2F*	18	32
4711.39	3.01E+00	3.19E+00	[Ar IV]	4711.37	F1	3p3 4S*	3p3 2D*	4	6
4713.12	7.64E-01	8.07E-01	He I	4713.17	V12	2p 3P*	4s 3S	9	3
4724.43	2.56E-01	2.70E-01	[Ne IV]	4724.15	F1	2p3 2D*	2p3 2P*	4	4
*	*	*	[Ne IV]	4725.62	F1	2p3 2D*	2p3 2P*	4	2
4740.25	4.26E+00	4.46E+00	[Ar IV]	4740.17	F1	3p3 4S*	3p3 2D*	4	4
4861.45	1.00E+02	1.00E+02	H 4	4861.33	H4	2p+ 2P*	4d+ 2D	8	32
4922.15	1.55E+00	1.51E+00	O II	4924.53	V28	3p 4S*	3d 4P	4	6
4931.12	5.32E-01	5.24E-01	[O III]	4931.80	F1	2p2 3P	2p2 1D	*	*
4959.02	4.65E+02	4.48E+02	[O III]	4958.91	F1	2p2 3P	2p2 1D	3	5
5006.27	1.40E+03	1.32E+03	[O III]	5006.84	F1	2p2 3P	2p2 1D	5	5
5198.21	1.75E+00	1.54E+00	[N I]	5199.84	F1	2p3 4S*	2p3 2D*	4	4
5518.70	1.34E+00	1.06E+00	[Cl III]	5517.66	F1	2p3 4S*	2p3 2D*	4	6
5537.85	1.33E+00	1.04E+00	[Cl III]	5537.60	F1	2p3 4S*	2p3 2D*	4	4
5577.69	6.30E-01	4.90E-01	[O I]	5577.34	F3	2p4 1D	2p4 1S	5	1
5754.34	6.56E+00	4.87E+00	[N II]	5754.60	F3	2p2 1D	2p2 1S	5	1
5875.43	2.51E+01	1.81E+01	He I	5875.66	V11	2p 3P*	3d 3D	9	15
6300.37	1.37E+01	8.90E+00	[O I]	6300.34	F1	2p4 3P	2p4 1D	5	5
6312.08	6.19E+00	4.01E+00	[S III]	6312.10	F3	2p2 1D	2p2 1S	5	1
*	*	*	He II	6310.80	5.16	5g+ 2G	16h+ 2H*	50	*
6364.06	3.67E+00	2.35E+00	[O I]	6363.78	F1	2p4 3P	2p4 1D	3	5
6548.20	1.02E+02	6.28E+01	[N II]	6548.10	F1	2p2 3P	2p2 1D	3	5
6563.02	4.73E+02	2.90E+02	H 3	6562.77	H3	2p+ 2P*	3d+ 2D	8	18
6583.62	3.13E+02	1.90E+02	[N II]	6583.50	F1	2p2 3P	2p2 1D	5	5
6678.35	7.09E+00	4.23E+00	He I	6678.16	V46	2p 1P*	3d 1D	3	5
6716.66	1.65E+01	9.78E+00	[S II]	6716.44	F2	2p3 4S*	2p3 2D*	4	6
6731.03	3.05E+01	1.80E+01	[S II]	6730.82	F2	2p3 4S*	2p3 2D*	4	4
7065.33	1.03E+01	5.70E+00	He I	7065.25	V10	2p 3P*	3s 3S	9	3
7135.85	4.51E+01	2.46E+01	[Ar III]	7135.80	F1	3p4 3P	3p4 1D	5	5
7280.90	9.57E-01	5.07E-01	He I	7281.35	V45	2p 1P*	3s 1S	3	1
7319.71	1.04E+01	5.48E+00	[O II]	7318.92	F2	2p3 2D*	2p3 2P*	6	2
*	*	*	[O II]	7319.99	F2	2p3 2D*	2p3 2P*	6	4
7329.92	8.28E+00	4.35E+00	[O II]	7329.67	F2	2p3 2D*	2p3 2P*	4	2
*	*	*	[O II]	7330.73	F2	2p3 2D*	2p3 2P*	4	4

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