The table below summarizes power requirements under various circumstances. Missing is the power required to run the trickle charger for the instrument cart.
| Telemetry only (minimum power - stepper motor power off) | 2 watts |
| Auxiliary electronics box only (telemetry and passive stepper motor power) | 16 watts |
| Auxiliary electronics box and Leach controllers on but arrays not powered | 94 watts |
| Observing configuration (Aux box with powered arrays) | 147 watts |
| Observing + Turning filter wheel (duty cycle 15 seconds at hour intervals) | 188 watts |