----Damage to do (Damage to Resist)-----
Angel ---> Explosive (Kine/Exp)
Amarr ---> Thermal (EM/Therm)
Blood Raiders ---> EM (Em/Therm)
Caldari ---> Thermal (Kine/Therm)
CONCORD ---> Thermal (All)
Gallente ---> Thermal (Kine/Therm)
Guristas ---> Kinetic (Kine/Therm)
Khanid ---> Thermal (EM/Therm)
Mimintar ---> Thermal (Therm/Exp)
Mercenary ---> Thermal (EM/Therm/Kine)
Mordus ---> Kinetic (Kine/Therm)
Odamian ---> All (Kine/Therm)
Drones ---> EM (All)
Rogue Pirates ---> All (EM/Exp/Kine)
Sansha ---> EM (EM/Therm)
Serpentis ---> Thermal (Kine/Therm)
Zazzmatazz ---> Thermal (All)

Stacking Effectiveness:
1st mod: c(1) = 100,00% effectiveness
2nd mod: c(2) = 86,91% effectiveness
3rd mod: c(3) = 57,06% effectiveness
4th mod: c(4) = 28,30% effectiveness
5th mod: c(5) = 10,60% effectiveness

** Targeting systems **
Minmatar - Ladar
Caldari - Gravimetric
Gallente - Magnetometric
Amarr - Radar
https://wiki.eveonline.com/en/wiki/Cosmic_Anomaly#Difficulty