Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.8842E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-08T00:20:30+0800
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    1 Object 1

    AOE ID 21682
    NORAD ID 21682
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 66039
    NORAD ID 66039
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB QIANFAN-97
    Time of Closest Approach 2026-09-07T16:44:45+0000
    Collision Probability (Pc) 2.8842E-6
    Conjunction Distance (km) 1.973 km
    Relative Speed (km/s) 14.185 km/s
    Conjunction Risk Parameters R (Radial): -0.141 | I (In-track): -0.576 | C (Cross-track): 1.882
    Collision Risk Index (CRI) 0.44
    X Position (km) 1531.684 1531.066
    Position Y (km) 1218.084 1219.928
    Position Z (km) 7235.15 7234.823
    Velocity X (km/s) 7.379 -5.798
    Velocity Y (km/s) -0.184 -3.997
    Velocity Z (km/s) -1.712 1.897

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB QIANFAN-97
    Semimajor Axis (a) 8154.805 km 7465.362 km
    Eccentricity (e) 0.083327 0.000596
    Inclination (i) 99.3928° 89.0008°
    RAAN 180.4796° 35.1465°
    Perigee Argument 120.3179° 93.6808°
    Mean Anomaly (M) 27.9298° 266.5022°
    Apogee 2456.181 km 1091.678 km
    Perigee 1097.155 km 1082.772 km
    Orbit Epoch 2026-09-07T06:48:34+0000 2026-09-04T16:42:14+0000

    DELTA 1 DEB & QIANFAN-97 Collision Probability (Pc) Trend

    DELTA 1 DEB & QIANFAN-97 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & QIANFAN-97 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & QIANFAN-97 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-97Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-97Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data