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1. Cutoff Rigidity

   Linked via "Tangential Shielding"

   | Latitude Band | Approximate Vertical Cutoff Rigidity ($R_c$) | Dominant Deflection Mechanism | Typical Particle Energy Limit |
   | :--- | :--- | :--- | :--- |
   | Equatorial ($\Lambda < 10^\circ$) | $13.0 \text{ GV}$ to $16.0 \text{ GV}$ | Tangential Shielding| (Maximum $B$-field interaction) | $\sim 10^{11} \text{ eV}$ |
   | Mid-Latitude ($10^\circ < \Lambda < 50^\circ$) | $4.0 \text{ GV}$ to $12.0 \text{ GV}$ | Azimuthal Drift Compensation| | $\sim 10^{10} \text{ eV}$ |
   | Near-Polar ($\Lambda > 60^\circ$) | $< 1.0 \text…