{
  "generated_utc": "2026-09-21T23:57:45.367614+00:00",
  "reproduction": "python scripts/validate_phenomt_precession.py --backend torch --case baseline high_mass_ratio --method numerical --sample-rate 16384 --output receipt.json",
  "versions": {
    "python": "3.13.7",
    "numpy": "2.5.3",
    "lalsimulation": "6.2.1",
    "torch": "2.14.0"
  },
  "dtype": "float64",
  "device": "cpu",
  "parameters": {
    "baseline": {
      "mass1": 40.0,
      "mass2": 15.0,
      "spin1": [
        0.2,
        0.1,
        0.3
      ],
      "spin2": [
        0.0,
        0.1,
        -0.2
      ],
      "distance_mpc": 100.0,
      "inclination": 0.8,
      "phic": 0.3,
      "f_lower_hz": 20.0,
      "f_ref_hz": 20.0
    },
    "high_mass_ratio": {
      "mass1": 60.0,
      "mass2": 6.0,
      "spin1": [
        0.2,
        0.1,
        0.8
      ],
      "spin2": [
        0.1,
        0.0,
        0.1
      ],
      "distance_mpc": 100.0,
      "inclination": 1.2,
      "phic": 0.1,
      "f_lower_hz": 20.0,
      "f_ref_hz": 20.0
    }
  },
  "metrics": {
    "relative_l2": "norm(actual-reference)/norm(reference); no alignment",
    "mismatch": "1-abs(vdot(actual,reference))/(norm(actual)*norm(reference)); unweighted, constant-phase maximization only, no time shift"
  },
  "results": [
    {
      "approximant": "IMRPhenomTP",
      "method": "numerical",
      "backend": "torch",
      "case": "baseline",
      "sample_rate_hz": 16384,
      "precession_version": 300,
      "final_spin_mod": 4,
      "samples": 23483,
      "epoch_seconds": -1.297896538,
      "relative_l2": 0.024199988799072272,
      "mismatch": 0.0002879142978143845,
      "inspiral": {
        "relative_l2": 0.023343576845777904,
        "mismatch": 0.0002658065916617547
      },
      "ringdown": {
        "relative_l2": 0.043264441980365415,
        "mismatch": 0.00035958883166520295
      }
    },
    {
      "approximant": "IMRPhenomTPHM",
      "method": "numerical",
      "backend": "torch",
      "case": "baseline",
      "sample_rate_hz": 16384,
      "precession_version": 300,
      "final_spin_mod": 4,
      "samples": 23483,
      "epoch_seconds": -1.297896538,
      "relative_l2": 0.024778802882786843,
      "mismatch": 0.00030280616705979924,
      "inspiral": {
        "relative_l2": 0.02359132845449243,
        "mismatch": 0.000272279265901898
      },
      "ringdown": {
        "relative_l2": 0.050104852306085454,
        "mismatch": 0.0005995887423272395
      }
    },
    {
      "approximant": "IMRPhenomTP",
      "method": "numerical",
      "backend": "torch",
      "case": "high_mass_ratio",
      "sample_rate_hz": 16384,
      "precession_version": 300,
      "final_spin_mod": 4,
      "samples": 45749,
      "epoch_seconds": -2.629817046,
      "relative_l2": 0.30796763075566597,
      "mismatch": 0.04741120197875093,
      "inspiral": {
        "relative_l2": 0.30252712175772695,
        "mismatch": 0.045644763303099856
      },
      "ringdown": {
        "relative_l2": 0.483459071561998,
        "mismatch": 0.0932127197698186
      }
    },
    {
      "approximant": "IMRPhenomTPHM",
      "method": "numerical",
      "backend": "torch",
      "case": "high_mass_ratio",
      "sample_rate_hz": 16384,
      "precession_version": 300,
      "final_spin_mod": 4,
      "samples": 45749,
      "epoch_seconds": -2.629817046,
      "relative_l2": 0.30671070122919125,
      "mismatch": 0.04689345222297703,
      "inspiral": {
        "relative_l2": 0.29895398117078564,
        "mismatch": 0.04455145993579335
      },
      "ringdown": {
        "relative_l2": 0.49359697521616097,
        "mismatch": 0.07433979123220069
      }
    }
  ]
}