Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    9.215364E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T23:28:41+0800
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    1 Object 1

    AOE ID 49249
    NORAD ID 49249
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 63170
    NORAD ID 63170
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter NIMBUS 2 DEB QIANFAN-84
    Time of Closest Approach 2026-09-12T00:41:12+0000
    Collision Probability (Pc) 9.215364E-6
    Conjunction Distance (km) 1.361 km
    Relative Speed (km/s) 14.59 km/s
    Conjunction Risk Parameters R (Radial): -0.853 | I (In-track): -0.079 | C (Cross-track): 1.057
    Collision Risk Index (CRI) 0.54
    X Position (km) -2744.663 -2743.999
    Position Y (km) 6919.808 6920.994
    Position Z (km) 385.969 385.915
    Velocity X (km/s) 1.386 -0.269
    Velocity Y (km/s) 0.111 0.321
    Velocity Z (km/s) 7.195 -7.299

    Orbital Parameters 国际轨道数据源

    Parameter NIMBUS 2 DEB QIANFAN-84
    Semimajor Axis (a) 7480.706 km 7446.653 km
    Eccentricity (e) 0.005374 0.001746
    Inclination (i) 100.4383° 88.9659°
    RAAN 109.6433° 291.8701°
    Perigee Argument 53.5045° 65.1047°
    Mean Anomaly (M) 307.1016° 295.1916°
    Apogee 1142.774 km 1081.518 km
    Perigee 1062.364 km 1055.514 km
    Orbit Epoch 2026-09-09T13:37:05+0000 2026-09-10T05:09:21+0000

    NIMBUS 2 DEB & QIANFAN-84 Collision Probability (Pc) Trend

    NIMBUS 2 DEB & QIANFAN-84 Collision Probability (Pc) TrendNot Available

    NIMBUS 2 DEB & QIANFAN-84 Miss Distance (Miss Distance) Trend

    NIMBUS 2 DEB & QIANFAN-84 Miss Distance (Miss Distance) TrendNot Available

    NIMBUS 2 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-84Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NIMBUS 2 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-84Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NIMBUS 2 DEB

    No nearby objects data