Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.93081E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:03:49+0800
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    1 Object 1

    AOE ID 40647
    NORAD ID 40647
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69089
    NORAD ID 69089
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter NIMBUS 2 DEB QIANFAN-143
    Time of Closest Approach 2026-10-28T16:01:07+0000
    Collision Probability (Pc) 1.93081E-6
    Conjunction Distance (km) 2.365 km
    Relative Speed (km/s) 14.54 km/s
    Conjunction Risk Parameters R (Radial): -0.258 | I (In-track): 0.277 | C (Cross-track): -2.333
    Collision Risk Index (CRI) 0.41
    X Position (km) 4269.558 4267.986
    Position Y (km) -2568.589 -2570.355
    Position Z (km) 5527.149 5527.194
    Velocity X (km/s) 3.481 -4.561
    Velocity Y (km/s) -4.372 2.973
    Velocity Z (km/s) -4.739 4.892

    Orbital Parameters 国际轨道数据源

    Parameter NIMBUS 2 DEB QIANFAN-143
    Semimajor Axis (a) 7463.326 km 7446.628 km
    Eccentricity (e) 0.003690 0.000220
    Inclination (i) 100.2718° 88.9843°
    RAAN 135.6634° 327.9596°
    Perigee Argument 185.9918° 98.2138°
    Mean Anomaly (M) 174.0775° 261.9263°
    Apogee 1112.727 km 1070.131 km
    Perigee 1057.651 km 1066.851 km
    Orbit Epoch 2026-10-27T00:08:12+0000 2026-10-27T06:00:36+0000

    NIMBUS 2 DEB & QIANFAN-143 Collision Probability (Pc) Trend

    NIMBUS 2 DEB & QIANFAN-143 Collision Probability (Pc) TrendNot Available

    NIMBUS 2 DEB & QIANFAN-143 Miss Distance (Miss Distance) Trend

    NIMBUS 2 DEB & QIANFAN-143 Miss Distance (Miss Distance) TrendNot Available

    NIMBUS 2 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-143Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NIMBUS 2 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-143Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NIMBUS 2 DEB

    No nearby objects data