Apparent narrow P Cygni profile in the spectrum taken at 262 d. We subtracted the overlaying broad emission feature and fit two Gaussian profiles with FWHMs fixed to the instrumental resolution of 85 km s⁻¹ to the residual spectrum. The red and blue dotted lines show the best-fit emission and absorption features, respectively, while the yellow dotted line shows the sum of the two features. The peak-to-peak separation of the two profiles is 56.7 km/s.