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🔋 Spacecraft Power & Eclipse Budget

🔋 Spacecraft Power & Eclipse Budget

Balance solar generation, sunlit and eclipse loads, orbital timing and usable battery depth. See both the eclipse survival margin and whether each orbit finishes with an energy surplus.

Net energy / orbit
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Eclipse energy draw
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Usable battery
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Battery margin
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First-pass energy arithmetic only. It omits battery charge/discharge efficiency, degradation, peak current, thermal limits, pointing, seasonal beta angle and redundancy. Use qualified power-system analysis for flight decisions.

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