Table 1: Spectral analysis of GRB 020410; the $N_{\rm H}$ is fixed at the Galactic value 8 $\times $ 1020 cm-2 and the line width at 0.1 keV.
ToO $K_{\rm PL}^{a}$ $\alpha$ $E_{\rm line}$ $K_{\rm line}^{a}$ $\chi^2_n$
  $\times 10^{-3}$   (keV) $\times 10^{-5}$  
1 $\rm 1.44^{+0.22}_{-0.20}$ $\rm 2.05^{+0.12}_{-0.13}$ - - 0.93
1 $\rm 1.38^{+0.22}_{-0.20}$ $\rm 2.05^{+0.13}_{-0.12}$ $\rm 3.07^{+0.15}_{-0.17}$ $\rm 2.4^{+1.8}_{-1.4}$ 0.80
1a $\rm 1.57^{+0.34}_{-0.30}$ $\rm 2.06^{+0.17}_{-0.16}$ - - 0.81
1a $\rm 1.49^{+0.35}_{-0.31}$ $\rm 2.05^{+0.19}_{-0.18}$ $\rm 2.96^{+0.18}_{-0.28}$ $\rm 2.8^{+3.1}_{-2.1}$ 0.69
1b $\rm 1.27^{+0.28}_{-0.25}$ $\rm 2.01^{+0.16}_{-0.17}$ - - 0.80
1b $\rm 1.24^{+0.28}_{-0.25}$ $\rm 2.02^{+0.18}_{-0.18}$ $\rm 3.36^{+0.20}_{-0.43}$ $\rm 2.2^{+2.0}_{-1.9}$ 0.70
2 $\rm0.53^{+0.17}_{-0.14}$ $\rm 1.93^{+0.24}_{-0.24}$ - - 1.13
2 $\rm0.44^{+0.18}_{-0.15}$ $\rm 1.84^{+0.28}_{-0.28}$ $\rm 2.56^{+0.19}_{-0.15}$ $\rm 3.4^{+1.9}_{-2.2}$ 0.75
Note: errors are 90% confidence level.
a Power law and the Gaussian normalization constants.

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