{"artifact_id":"L1-473","layer":"L1","title":"Radiometric Sensor Calibration","domain":"Geodesy","sub_domain":"Sensor calibration","physics_fingerprint":{"L_DAG":2.5,"title":"Radiometric Sensor Calibration","domain":"Geodesy","carrier":"photon","primitives":["S.calibration.vicarious","G.structured","O.least_squares.calibration"],"sub_domain":"Sensor calibration","noise_model":"gaussian","problem_class":"parameter_estimation","solution_space":"calibration_coefficient_vector","difficulty_delta":3,"integration_axis":"temporal_vicarious","sensing_mechanism":"absolute_radiometric_calibration"},"observable_profile":{"metric":"radiometric_calibration_uncertainty_percent","regime":"Existence of the recovered calibration_coefficient_vector is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by declared priors. Stability is conditionally stable (kappa_eff ~= 20); sensor_degradation_drift_percent_yr dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Gaussian sets the irreducible data-fidelity floor.","secondary":"reflectance_RMSE"},"size_tiers":{"center_spec":{"omega":{"N_bands":10,"N_cal_sites":20,"degradation_percent_yr":0.5,"aerosol_uncertainty_AOD":0.02},"input_format":"measurement_only","problem_class":"parameter_estimation","forward_operator":"absolute_radiometric_calibration","epsilon_fn_center":"2.0 radiometric_calibration_uncertainty_percent"},"omega_bounds":{"N_bands":[1,100],"N_cal_sites":[5,100],"degradation_percent_yr":[0.0,2.0],"aerosol_uncertainty_AOD":[0.005,0.1]},"epsilon_bounds":{"radiometric_calibration_uncertainty_percent":[0.5,10.0]},"allowed_problem_classes":["parameter_estimation"],"allowed_omega_dimensions":["N_bands","N_cal_sites","degradation_percent_yr","aerosol_uncertainty_AOD"],"allowed_forward_operators":["absolute_radiometric_calibration"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":500,"metric":"radiometric_calibration_uncertainty_percent"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xaed9702d7418006fe1eceeffbcfb63696eb1a130cda9788d7e1bfbca17b9e189","chain_tx_hash":"0x1af13fbf67e41defa9f5cf19a2f3965c96e4123095dda29b4f143d72f9f79ea9","chain_block":41555299}