Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.104125E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T04:41:38+0800
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    1 Object 1

    AOE ID 4733
    NORAD ID 4733
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 57693
    NORAD ID 57693
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter THORAD AGENA D DEB CAPELLA-11 (ACADIA)
    Time of Closest Approach 2026-09-15T20:52:31+0000
    Collision Probability (Pc) 2.104125E-6
    Conjunction Distance (km) 2.265 km
    Relative Speed (km/s) 14.471 km/s
    Conjunction Risk Parameters R (Radial): -2.078 | I (In-track): -0.265 | C (Cross-track): 0.859
    Collision Risk Index (CRI) 0.41
    X Position (km) 2877.517 2876.1
    Position Y (km) -5030.316 -5029.419
    Position Z (km) 3889.82 3888.298
    Velocity X (km/s) -3.415 6.201
    Velocity Y (km/s) 2.806 0.194
    Velocity Z (km/s) 6.171 -4.322

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB CAPELLA-11 (ACADIA)
    Semimajor Axis (a) 7042.515 km 6981.807 km
    Eccentricity (e) 0.008962 0.000121
    Inclination (i) 99.8951° 53.0066°
    RAAN 305.9155° 155.2570°
    Perigee Argument 19.9413° 39.9997°
    Mean Anomaly (M) 340.5253° 320.1072°
    Apogee 727.491 km 604.513 km
    Perigee 601.265 km 602.827 km
    Orbit Epoch 2026-09-15T09:16:44+0000 2026-09-14T16:52:03+0000

    THORAD AGENA D DEB & CAPELLA-11 (ACADIA) Collision Probability (Pc) Trend

    THORAD AGENA D DEB & CAPELLA-11 (ACADIA) Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & CAPELLA-11 (ACADIA) Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & CAPELLA-11 (ACADIA) Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CAPELLA-11 (ACADIA)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    CAPELLA-11 (ACADIA)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data