Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.880479E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T04:32:35+0800
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    1 Object 1

    AOE ID 4977
    NORAD ID 4977
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 69855
    NORAD ID 69855
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter THORAD AGENA D DEB QIANFAN-226
    Time of Closest Approach 2026-09-05T19:15:34+0000
    Collision Probability (Pc) 6.880479E-7
    Conjunction Distance (km) 2.6 km
    Relative Speed (km/s) 3.137 km/s
    Conjunction Risk Parameters R (Radial): 0.425 | I (In-track): -2.504 | C (Cross-track): -0.551
    Collision Risk Index (CRI) 0.32
    X Position (km) -2043.659 -2042.075
    Position Y (km) -2741.018 -2739.648
    Position Z (km) 6592.221 6593.76
    Velocity X (km/s) -5.85 -3.673
    Velocity Y (km/s) -3.145 -5.391
    Velocity Z (km/s) -3.101 -3.342

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB QIANFAN-226
    Semimajor Axis (a) 7441.298 km 7413.304 km
    Eccentricity (e) 0.002056 0.003423
    Inclination (i) 100.1611° 89.0051°
    RAAN 31.6044° 55.4183°
    Perigee Argument 64.9342° 50.7925°
    Mean Anomaly (M) 313.0523° 309.6263°
    Apogee 1078.459 km 1060.544 km
    Perigee 1047.863 km 1009.790 km
    Orbit Epoch 2026-09-04T09:02:47+0000 2026-09-03T20:38:57+0000

    THORAD AGENA D DEB & QIANFAN-226 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & QIANFAN-226 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & QIANFAN-226 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & QIANFAN-226 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-226Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-226Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data