Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.316344E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T23:24:16+0800
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    1 Object 1

    AOE ID 21598
    NORAD ID 21598
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 62801
    NORAD ID 62801
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB QIANFAN-71
    Time of Closest Approach 2026-09-13T00:23:37+0000
    Collision Probability (Pc) 1.316344E-5
    Conjunction Distance (km) 1.224 km
    Relative Speed (km/s) 14.388 km/s
    Conjunction Risk Parameters R (Radial): 1.117 | I (In-track): 0.107 | C (Cross-track): -0.487
    Collision Risk Index (CRI) 0.57
    X Position (km) -573.753 -573.224
    Position Y (km) -2553.073 -2552.916
    Position Z (km) -6971.105 -6970.013
    Velocity X (km/s) -4.781 1.865
    Velocity Y (km/s) -5.227 6.591
    Velocity Z (km/s) 2.25 -2.563

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB QIANFAN-71
    Semimajor Axis (a) 7702.068 km 7446.623 km
    Eccentricity (e) 0.034952 0.001391
    Inclination (i) 99.5718° 88.9656°
    RAAN 227.5278° 74.8779°
    Perigee Argument 283.7925° 286.5335°
    Mean Anomaly (M) 234.0298° 73.4287°
    Apogee 1593.133 km 1078.845 km
    Perigee 1054.729 km 1058.127 km
    Orbit Epoch 2026-09-09T09:43:22+0000 2026-09-10T05:23:42+0000

    DELTA 1 DEB & QIANFAN-71 Collision Probability (Pc) Trend

    DELTA 1 DEB & QIANFAN-71 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & QIANFAN-71 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & QIANFAN-71 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-71Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-71Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data