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SPPI spectral index
Boom-window stacking
Standard pose matched filter
Glint spike-rate estimator
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Glint-validated training labels
Epoch jump as recall signal
Calibration imagery dating
Small ground-mount instrument
Calibration density mismatch
Europe download campaign
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August 2026
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TraceTheSun concept note
Scaling globally (open option)
Egypt
Atlas
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Vietnam
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