Table 4: Intensities of selected emission lines corrected by E(B-V)= 0.6 in the transition and nebular stages measured with the echelle spectrograph.
Elements I($\lambda $)
  Feb. 21 Mar. 16 Mar. 17 Apr. 23 Apr. 26 May 15 June 9 Sep. 16
JD 2 451 000+ 595.7 619.7 620.7 657.6 660.6 679.6 704.6 804.4
[O III] 4363 6.5 5.7 4.2 4.5 4.3 4.3 3.5 0.92
He I 4471 0.30 0.54 1.1 0.14 0.16 0.15    
N III 4511, 4515, 4524 0.58 0.40 2.8 0.31 0.22 0.23 0.40  
N II 4607, 4614 0.88     0.60 0.35 0.36 0.64 0.15
N II+N III   12.5$\dag $ 21.4$\dag $          
N III 4641, 4634 etc. 3.9     2.1 1.6 1.5 1.6 0.21
He II 4686 1.8 <0.02 <0.02 1.4 0.86 0.87 1.34 0.19
H$\beta $ 5.6 5.1 5.6 2.5 2.1 1.9 1.7 0.25
[Fe VII] 4942               0.1:
[O III] 4959 3.3 4.8 3.8 3.1 3.0 3.1 2.9 1.2
[O III] 5007 11.0 14.7 11.2 9.5 9.2 9.7 8.8 3.4
Si II 5056 0.28     0.09 0.08 0.08    
[Fe VI] 5147 0.14     0.11 0.09 0.08 0.10 0.05
[Fe VI] 5177, N II 5180 0.26 0.35 0.4: 0.23 0.17 0.17 0.17 0.03
[Fe VI] 5279, [Fe III] 5270 0.24 0.13 0.6: 0.07 0.12 0.10 0.08 0.08
[Ca V] 5309       0.15 0.13 0.09 0.10 0.06
He II 5411 0.1:     0.10 0.08 0.07 0.12 0.02
N II 5535 0.12: 0.40 1.04 0.04 0.04 0.04    
[Ca VII] 5616               0.02
N II 5667 0.26 0.32 0.6: 0.11        
N II 5680, [Fe VI] 5678 0.26 0.57 0.6: 0.21 0.23* 0.24* 0.25* 0.03*
[Fe VII] 5721               0.12
[N II] 5755 2.5 3.2 5.0 1.14 1.24 1.05 0.76 0.15
He I 5876 1.13 1.50 1.27 0.47 0.35 0.28 0.26 0.02
N II 5940, 5942 0.28 0.20 0.38 0.08 0.06 0.07 0.06  
[Ca V] 6086 0.28     0.27 0.21 0.22 0.22 0.19**
N II 6168 0.11 0.17 0.13          
uid. $\lambda $6200               0.02
[O I] 6300, [S III] 6310 0.46 0.13   0.05 0.12 0.15: 0.03 0.02
Si II 6347, 6371 0.48 0.17   0.18 0.19   0.05  
[Fe X] 6375               0.06$\ddagger$
N II 6482 0.18     0.14 0.08 0.11 0.07 0.03
H$\alpha $ 24.8 26.4 26.9 11.4 8.2 6.9 6.0 0.92
[N II] 6584 0.49 0.63 0.62 0.33 0.28 0.26 0.21 0.07
He I 6678 0.31 0.30 0.38 0.17 0.11 0.11 0.11  
H$\alpha $/H$\beta $ 4.4 5.2 4.8 4.6 3.9 3.7 3.5 3.7
FWHM of H$\beta $ 2730 2740 2710 2720 2710 2700 2720 2690
Unit of I($\lambda $) is $10^{-10}~\rm erg~cm^{-2}~s^{-1}$ and that of FWHM is km s-1.
$\dag $: N II $\lambda $4607 and N III $\lambda $4641 can not be separated.
*: blended with N II $\lambda $5667, **: blended with [Fe VII] $\lambda $6086, $\ddagger$: blended with Si II $\lambda $$\lambda $6347, 6371.

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