{
  "generated_utc": "2026-09-21T19:56:42.793686+00:00",
  "reproduction": "python scripts/validate_phenomt_precession.py --output receipt.json",
  "versions": {
    "python": "3.13.7",
    "torch": "2.14.0",
    "numpy": "2.5.3",
    "lalsimulation": "6.2.1"
  },
  "parameters": {
    "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,
    "sample_rate_hz": 2048
  },
  "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": "msa",
      "precession_version": 22310,
      "final_spin_mod": 3,
      "samples": 2935,
      "epoch_seconds": -1.297896538,
      "relative_l2": 0.003788480630643731,
      "mismatch": 7.176034973355172e-06
    },
    {
      "approximant": "IMRPhenomTPHM",
      "method": "msa",
      "precession_version": 22310,
      "final_spin_mod": 3,
      "samples": 2935,
      "epoch_seconds": -1.297896538,
      "relative_l2": 0.003882715398057058,
      "mismatch": 7.5371571551796634e-06
    },
    {
      "approximant": "IMRPhenomTP",
      "method": "numerical",
      "precession_version": 300,
      "final_spin_mod": 4,
      "samples": 2935,
      "epoch_seconds": -1.297896538,
      "relative_l2": 0.02727938687505817,
      "mismatch": 0.0003642228742606335
    },
    {
      "approximant": "IMRPhenomTPHM",
      "method": "numerical",
      "precession_version": 300,
      "final_spin_mod": 4,
      "samples": 2935,
      "epoch_seconds": -1.297896538,
      "relative_l2": 0.027624253531308544,
      "mismatch": 0.0003746106076552014
    }
  ]
}