Gaia 2178474899372064896

2026-09-15 · DNB

Experimental relative photometry. No transit confirmation; conditional errors do not include all systematic effects.

Calibration/orientation segment 07402866

DifferentialEnsemble1.0380.96710.04 — 0.95 hours since the first recorded header start · exposure midpoints
Saved relative measurements; gaps are retained.

Single event: not_run. Periodic: not enough suitable data.

Calibration/orientation segment 83ffcca6

DifferentialEnsemble1.0940.9091.82 — 6.87 hours since the first recorded header start · exposure midpoints
Saved relative measurements; gaps are retained.

Single event: searched. Periodic: At least 12 hours baseline for declared >=6 hour periods; three sampled events required.

Measurements, comparison stars, errors and event screeningAll shared numerical measurements and diagnostic checks
[
  {
    "diagnostic_correlations": {
      "centroid_shift": 0.24262691230289457,
      "fwhm_raw_session_estimate": null,
      "sky": 0.14711806651285775
    },
    "indices": [
      0,
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
      9
    ],
    "max_leave_one_reference_difference": 0.012521977342484392,
    "reason": "Too few epochs, unstable independent references, or poor centroid agreement",
    "reference_scatter": 0.01463820528131388,
    "screening": {
      "periodic": {
        "state": "not_run"
      },
      "reason": "Too few epochs, unstable independent references, or poor centroid agreement",
      "single": {
        "state": "not_run"
      },
      "state": "blocked"
    },
    "search_qualified": false,
    "segment_id": "07402866fa7c679e",
    "usable_epochs": 10
  },
  {
    "diagnostic_correlations": {
      "centroid_shift": 0.2450449484194349,
      "fwhm_raw_session_estimate": null,
      "sky": -0.14086805591554277
    },
    "indices": [
      10,
      11,
      12,
      13,
      14,
      15,
      16,
      17,
      18,
      19,
      20,
      21,
      22,
      23,
      24,
      25,
      26,
      27,
      28,
      29,
      30,
      31,
      32,
      33,
      34,
      35,
      36,
      37,
      38,
      39,
      40,
      41,
      42,
      43,
      44,
      45,
      46,
      47,
      48,
      49,
      50,
      51,
      52,
      53,
      54,
      55,
      56,
      57,
      58,
      59,
      60,
      61,
      62,
      63,
      64,
      65
    ],
    "max_leave_one_reference_difference": 0.01703508993828784,
    "reason": "Conditional diagnostic screen only; phase/master errors not calibrated",
    "reference_scatter": 0.02961079639105097,
    "screening": {
      "FAP": null,
      "multiplicity": "All tested targets/windows/grid hypotheses retained; no calibrated FAP across them",
      "periodic": {
        "branch": "BLS",
        "epochs": 56,
        "method": "experimental-events-0.2",
        "policy": {
          "FAP": "not calibrated; diagnostic score only",
          "durations_s": [
            900.0,
            1800.0,
            3600.0
          ],
          "max_period_s": 432000.0,
          "max_targets_per_group": 16,
          "min_before_after": 3,
          "min_epochs": 12,
          "min_inside": 3,
          "min_observed_events": 3,
          "min_period_s": 21600.0,
          "outlier_removal": "none",
          "period_grid_size": 500,
          "review_score": 6.0
        },
        "reason": "At least 12 hours baseline for declared >=6 hour periods; three sampled events required",
        "state": "insufficient_support",
        "tested_hypotheses": 0
      },
      "single": {
        "best": {
          "center_relative_s": 17057.711944,
          "conditional_white_sigma": 0.0121384038477651,
          "depth": 0.024036372722590987,
          "diagnostic_score": 1.980192208468704,
          "duration_s": 3600.0,
          "exposure_fractions": [
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.37434777666667285,
            1.0,
            1.0,
            1.0,
            1.0,
            1.0,
            1.0,
            1.0,
            1.0,
            1.0,
            1.0,
            1.0,
            0.3403995100000005,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0,
            0.0
          ],
          "in_event_midpoints_s": [
            15523.547742,
            15835.066399,
            16138.122326,
            16441.256135,
            16754.450379,
            17057.711944,
            17360.653257,
            17673.880314,
            17977.184726,
            18280.715765,
            18602.136433
          ],
          "max_inside_gap_s": 321.42066799999884,
          "n_after": 18,
          "n_before": 25,
          "n_inside": 11
        },
        "branch": "single_event",
        "epochs": 56,
        "method": "experimental-events-0.2",
        "noise_scale": 0.036019325514637476,
        "policy": {
          "FAP": "not calibrated; diagnostic score only",
          "durations_s": [
            900.0,
            1800.0,
            3600.0
          ],
          "max_period_s": 432000.0,
          "max_targets_per_group": 16,
          "min_before_after": 3,
          "min_epochs": 12,
          "min_inside": 3,
          "min_observed_events": 3,
          "min_period_s": 21600.0,
          "outlier_removal": "none",
          "period_grid_size": 500,
          "review_score": 6.0
        },
        "reason": "",
        "review_items": [],
        "state": "searched",
        "tested_hypotheses": 126
      },
      "state": "executed",
      "warning": "Experimental review only. Correlated noise and reference variability can produce dips."
    },
    "search_qualified": true,
    "segment_id": "83ffcca6232f6d87",
    "usable_epochs": 56
  }
]