{"artifact_id":"L1-467","layer":"L1","title":"Satellite Orbit Determination","domain":"Geodesy","sub_domain":"Orbital mechanics","physics_fingerprint":{"L_DAG":3.2,"title":"Satellite Orbit Determination","domain":"Geodesy","carrier":"RF","primitives":["D.time","S.kalman.orbit_filter","O.least_squares.batch"],"sub_domain":"Orbital mechanics","noise_model":"gaussian","problem_class":"parameter_estimation","solution_space":"6D_orbital_state_vector","difficulty_delta":3,"integration_axis":"orbital_arc","sensing_mechanism":"range_range_rate_tracking"},"observable_profile":{"metric":"position_prediction_error_km","regime":"Existence of the recovered 6D_orbital_state_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 ~= 200); atmospheric_drag_uncertainty dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Gaussian sets the irreducible data-fidelity floor.","secondary":"velocity_error_m_s"},"size_tiers":{"center_spec":{"omega":{"altitude_km":500,"N_observations":1000,"arc_length_days":3.0,"drag_Cd_uncertainty":0.1},"input_format":"measurement_only","problem_class":"parameter_estimation","forward_operator":"range_range_rate_tracking","epsilon_fn_center":"0.1 position_prediction_error_km"},"omega_bounds":{"altitude_km":[200,36000],"N_observations":[50,10000],"arc_length_days":[0.5,10.0],"drag_Cd_uncertainty":[0.01,0.5]},"epsilon_bounds":{"position_prediction_error_km":[0.01,5.0]},"allowed_problem_classes":["parameter_estimation"],"allowed_omega_dimensions":["N_observations","arc_length_days","drag_Cd_uncertainty","altitude_km"],"allowed_forward_operators":["range_range_rate_tracking"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":5000,"metric":"position_prediction_error_km"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x86246f83246228f4bb276e90e41f317760dc9848e2085c2f9f0c7ffaedca22dd","chain_tx_hash":"0x803c02ae02ab4e8f9645574a3ef360e4e99f8dda68d669ed1002fb880a8a2c72","chain_block":41555298}