Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.560817E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T13:15:55+0800
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    1 Object 1

    AOE ID 20893
    NORAD ID 20893
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 47894
    NORAD ID 47894
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-2354
    Time of Closest Approach 2026-09-12T15:49:37+0000
    Collision Probability (Pc) 1.560817E-6
    Conjunction Distance (km) 2.672 km
    Relative Speed (km/s) 14.649 km/s
    Conjunction Risk Parameters R (Radial): -2.123 | I (In-track): 0.47 | C (Cross-track): -1.551
    Collision Risk Index (CRI) 0.39
    X Position (km) 4387.756 4387.632
    Position Y (km) -4255.725 -4253.573
    Position Z (km) -3042.171 -3040.592
    Velocity X (km/s) 1.577 1.752
    Velocity Y (km/s) -3.198 5.429
    Velocity Z (km/s) 6.754 -5.083

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-2354
    Semimajor Axis (a) 6821.507 km 6822.245 km
    Eccentricity (e) 0.000380 0.000488
    Inclination (i) 98.0712° 53.1475°
    RAAN 309.7044° 126.7184°
    Perigee Argument 204.5190° 105.2766°
    Mean Anomaly (M) 280.2411° 254.8779°
    Apogee 445.963 km 447.436 km
    Perigee 440.777 km 440.780 km
    Orbit Epoch 2026-09-10T17:44:04+0000 2026-09-09T23:04:37+0000

    CZ-4 DEB & STARLINK-2354 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-2354 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-2354 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-2354 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-2354Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-2354Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data