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Table 5.

Fit results for different PCA runs.

Line of Species Velocity PC1 score TPC1
sight range (km s−1) (%) (days)
SW H2O [–100, 100] 28 272 ± 15
[–100, 0] 40 212 ± 11
[0, 100] 44 228 ± 26
CH1 [–60, 60] 34 270 ± 36
CH2 [–60, 60] 26 266 ± 21
NE H2O [–240, –120] 19 219 ± 15

Notes. The errors quoted for the period are those coming out of the fit of a sine function to the PC1 eigenvalues versus time, all eigenvalues taken with the same weight.

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