This case study concerns the transient difference absorption measured after 490 nm excitation from the peridinin chlorophyll protein (abbreviated PCP), a light-harvesting complex of oceanic photosynthetic algae. The measurement and the global analysis are described in (van Stokkum et al. 2009), Fig.S6. The target analysis is based upon the model explained in (van Stokkum et al. 2009), Fig.4 and Fig.7.