Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.87853E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T22:03:41+0800
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    1 Object 1

    AOE ID 20903
    NORAD ID 20903
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 25984
    NORAD ID 25984
    Object Type PAYLOAD
    Country
    ORB ORB

    Conjunction Constraints

    Parameter CZ-4 DEB ORBCOMM FM 36
    Time of Closest Approach 2026-09-12T13:25:56+0000
    Collision Probability (Pc) 1.87853E-6
    Conjunction Distance (km) 2.362 km
    Relative Speed (km/s) 13.838 km/s
    Conjunction Risk Parameters R (Radial): -2.077 | I (In-track): -0.432 | C (Cross-track): 1.036
    Collision Risk Index (CRI) 0.4
    X Position (km) 2099.449 2099.062
    Position Y (km) 5846.744 5848.495
    Position Z (km) -3519.773 -3521.31
    Velocity X (km/s) -0.036 -4.986
    Velocity Y (km/s) -3.831 4.067
    Velocity Z (km/s) -6.433 3.794

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB ORBCOMM FM 36
    Semimajor Axis (a) 7168.971 km 7138.836 km
    Eccentricity (e) 0.005496 0.000400
    Inclination (i) 98.4278° 45.0380°
    RAAN 253.5412° 111.9630°
    Perigee Argument 186.1657° 46.3127°
    Mean Anomaly (M) 200.3246° 313.8053°
    Apogee 830.233 km 763.554 km
    Perigee 751.435 km 757.844 km
    Orbit Epoch 2026-09-10T23:38:30+0000 2026-09-11T00:59:20+0000

    CZ-4 DEB & ORBCOMM FM 36 Collision Probability (Pc) Trend

    CZ-4 DEB & ORBCOMM FM 36 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & ORBCOMM FM 36 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & ORBCOMM FM 36 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ORBCOMM FM 36Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ORBCOMM FM 36Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data