Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.902845E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T16:10:23+0800
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    1 Object 1

    AOE ID 37615
    NORAD ID 37615
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 41919
    NORAD ID 41919
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB IRIDIUM 109
    Time of Closest Approach 2026-09-13T09:37:40+0000
    Collision Probability (Pc) 3.902845E-6
    Conjunction Distance (km) 1.779 km
    Relative Speed (km/s) 14.577 km/s
    Conjunction Risk Parameters R (Radial): -1.762 | I (In-track): -0.045 | C (Cross-track): -0.239
    Collision Risk Index (CRI) 0.47
    X Position (km) 1351.613 1352.16
    Position Y (km) 998.993 999.125
    Position Z (km) -6963.014 -6964.702
    Velocity X (km/s) -1.698 4.422
    Velocity Y (km/s) -7.127 5.752
    Velocity Z (km/s) -1.341 1.684

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB IRIDIUM 109
    Semimajor Axis (a) 7152.856 km 7155.803 km
    Eccentricity (e) 0.001502 0.000219
    Inclination (i) 98.5506° 86.3939°
    RAAN 253.8714° 51.8320°
    Perigee Argument 8.1955° 91.2800°
    Mean Anomaly (M) 351.9473° 268.8647°
    Apogee 785.466 km 779.236 km
    Perigee 763.972 km 776.096 km
    Orbit Epoch 2026-09-12T05:38:56+0000 2026-09-12T20:35:26+0000

    CZ-4 DEB & IRIDIUM 109 Collision Probability (Pc) Trend

    CZ-4 DEB & IRIDIUM 109 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & IRIDIUM 109 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & IRIDIUM 109 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 109Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 109Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data