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  "initial_proposal": "0.5isotropic+0.5HG about zenith",
  "sampled_phase_branch": true,
  "initial_source_weight": 1.226302883552434,
  "max_recorded_collisions": 10,
  "end_status": "escaped_before_next_collision",
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      "x_m": -143.3933586772721,
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      "aperture_cosine": 0.9999997726725532,
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      "accumulated_source_path_m": 805.3786026995457,
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      "cos_to_observer": 0.937315844476494,
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      "aperture_cosine": 0.9999996012087339,
      "observer_cloud_length_m": 407.9537228255825,
      "observer_tau": 1.3598457427519417,
      "observer_survival": 0.25670037179251015,
      "delay_us": 0.7123090513326662,
      "NEE_summand_per_m2": 6.202168133568282e-13,
      "NEE_summand_relative_vacuum": 2.222470030697851,
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      "prior_exit_distance_m": 515.5328984770208,
      "x_m": -149.28905230194096,
      "y_m": 460.3919931484506,
      "z_m": 16601.90801199156,
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      "source_weight": 1.226302883552434,
      "accumulated_source_path_m": 817.8407193712826,
      "observer_range_m": 533398.3115688092,
      "cos_to_observer": 0.7907689809097416,
      "p_per_sr": 0.140525169785408,
      "aperture_cosine": 0.9999995883361533,
      "observer_cloud_length_m": 398.09215188858684,
      "observer_tau": 1.3269738396286228,
      "observer_survival": 0.2652788241242247,
      "delay_us": 0.7210064243195308,
      "NEE_summand_per_m2": 1.606759957175819e-13,
      "NEE_summand_relative_vacuum": 0.5757625034415406,
      "sampled_next_cos": 0.8060648742964474,
      "outgoing_u": [
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    {
      "collision": 6,
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      "free_path_m": 54.87853349826393,
      "prior_exit_distance_m": 458.7027455687814,
      "x_m": -176.476096234118,
      "y_m": 462.4347015596592,
      "z_m": 16649.535162058477,
      "incoming_u": [
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      "source_weight": 1.226302883552434,
      "accumulated_source_path_m": 872.7192528695465,
      "observer_range_m": 533350.6945083264,
      "cos_to_observer": 0.8676682797083038,
      "p_per_sr": 0.2484769667297786,
      "aperture_cosine": 0.9999995693820461,
      "observer_cloud_length_m": 350.4649888580394,
      "observer_tau": 1.1682166295267982,
      "observer_survival": 0.31092093434501894,
      "delay_us": 0.7452280910814625,
      "NEE_summand_per_m2": 3.330488462257917e-13,
      "NEE_summand_relative_vacuum": 1.1934392353685943,
      "sampled_next_cos": 0.9631300675894622,
      "outgoing_u": [
        -0.37576944921663824,
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        0.9040123552469999
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    }
  ],
  "scope": "Worked mechanical ledger only. Each NEE value is a raw summand before division by the number of emitted histories. A partial single history is not an unbiased complete fluence estimate."
}