| { |
| "environment": { |
| "decision_interval_seconds": 120.0, |
| "episode_horizon": 25, |
| "neighborhood_size": 1, |
| "num_agents": 150, |
| "scenario": "generated" |
| }, |
| "maneuver": { |
| "commanded_delta_v_mps": 0.5, |
| "maximum_burn_duration_seconds": 60.0, |
| "maximum_thrust_newtons": 7.0, |
| "specific_impulse_seconds": 300.0 |
| }, |
| "policy": { |
| "algorithm": "mappo", |
| "global_state_dim": null, |
| "local_observation_dim": null, |
| "num_actions": 7 |
| }, |
| "rewards": { |
| "close_approach_flat_penalty": -10.0, |
| "close_approach_penalty": -30.0, |
| "collision_penalty": -100.0, |
| "delta_v_penalty_per_mps": 1.0, |
| "infeasible_maneuver_penalty": -2.0, |
| "shaping_discount": 0.99, |
| "shaping_weight": 30.0 |
| }, |
| "safety": { |
| "safe_separation_meters": 1000.0, |
| "screening_horizon_seconds": 1800.0 |
| }, |
| "scenario_generator": { |
| "dry_mass_kg": 250.0, |
| "epoch_window_seconds": 259200.0, |
| "extra_objects": null, |
| "harmless_miss_meters": [ |
| 2000.0, |
| 10000.0 |
| ], |
| "held_out_fraction": 0.2, |
| "initial_fuel_mass_kg": 50.0, |
| "maximum_altitude_meters": 2000000.0, |
| "maximum_attempts": 20, |
| "maximum_tle_age_days": 14.0, |
| "meeting_time_seconds": [ |
| 480.0, |
| 990.0 |
| ], |
| "metadata_path": "data/full/objects.csv", |
| "minimum_altitude_meters": 200000.0, |
| "minimum_perigee_altitude_meters": 150000.0, |
| "minimum_unplanned_separation_meters": 10000.0, |
| "second_threat_delay_seconds": [ |
| 60.0, |
| 240.0 |
| ], |
| "situation_weights": { |
| "debris": 0.3, |
| "double_threat": 0.15, |
| "harmless": 0.15, |
| "quiet": 0.15, |
| "satellite_pair": 0.25 |
| }, |
| "sizing_config": "configs/maneuver_sizing.json", |
| "split": "train", |
| "tle_path": "data/full/catalog.tle" |
| }, |
| "schema_version": 1, |
| "seed": 42, |
| "training": { |
| "actor_hidden_dims": [ |
| 128, |
| 64 |
| ], |
| "actor_learning_rate": 0.0001, |
| "checkpoint_interval": 5, |
| "critic_hidden_dims": [ |
| 256, |
| 128 |
| ], |
| "critic_learning_rate": 0.001, |
| "device": "cpu", |
| "entropy_coefficient": 0.05, |
| "gae_lambda": 0.95, |
| "gamma": 0.99, |
| "initial_actor_checkpoint": "runs/stage2/checkpoints/latest.pt", |
| "max_gradient_norm": 0.5, |
| "minibatch_size": 512, |
| "ppo_clip": 0.2, |
| "rollout_steps": 50, |
| "total_updates": 135, |
| "update_epochs": 4, |
| "value_clip": 0.2, |
| "value_coefficient": 0.5 |
| } |
| } |
|
|
