Table 6: Frequencies detected from the analysis of different lines using the RLC method for the 2001 data. The frequencies obtained with the LS method are shown in boldface.
Line Frequencies (c d^-1)

f₁ f₂ $f_3 \sim 2f_{\rm rot}$ $f_4 \sim f_{\rm rot}$

$He {\sc i}$ 4713 7.15/7.15 6.86/6.83 0.50/0.55 0.27/0.29

$He {\sc i}$ 4921 7.14/7.15 6.83 0.50/0.55 0.28/0.28

$He {\sc i}$ 5016 7.14/7.15 6.82/6.83 0.51/0.55 0.27/0.29

$He {\sc i}$ 5876 7.14/7.15 6.84 0.50/0.55 0.27/0.22

$Si {\sc iii}$ 4553 7.14/7.15 6.81 0.50/0.55 0.25/0.29

**Table 6:** Frequencies detected from the analysis of different lines using the RLC method for the 2001 data. The frequencies obtained with the LS method are shown in boldface.
Line	Frequencies (c d^-1)
	f₁	f₂	$f_3 \sim 2f_{\rm rot}$	$f_4 \sim f_{\rm rot}$
$He {\sc i}$ 4713	7.15/7.15	6.86/6.83	0.50/0.55	0.27/0.29
$He {\sc i}$ 4921	7.14/7.15	6.83	0.50/0.55	0.28/0.28
$He {\sc i}$ 5016	7.14/7.15	6.82/6.83	0.51/0.55	0.27/0.29
$He {\sc i}$ 5876	7.14/7.15	6.84	0.50/0.55	0.27/0.22
$Si {\sc iii}$ 4553	7.14/7.15	6.81	0.50/0.55	0.25/0.29

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