I am trying to use the dissipation factor in a capacitor's datasheet to calculate its series resistance, series inductance, and leakage resistance. For the full model of a capacitor below, should the dissipation factor be calculated as:

Dissipation Factor =(P1+P2)/(Q1+Q2), where P1 and P2 are the average powers of Rs and Rp. Q1 and Q2 are reactive power of Ls and C?

BlackMelon