Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.547227E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T21:14:50+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 2026-09-12T15:02:53+0000
    Collision Probability (Pc) 1.547227E-6
    Conjunction Distance (km) 2.689 km
    Relative Speed (km/s) 14.672 km/s
    Conjunction Risk Parameters R (Radial): 0.477 | I (In-track): -0.75 | C (Cross-track): -2.536
    Collision Risk Index (CRI) 0.39
    X Position (km) -4385.618 -4383.9
    Position Y (km) 4266.723 4268.383
    Position Z (km) 3006.355 3007.587
    Velocity X (km/s) -1.559 -1.76
    Velocity Y (km/s) 3.186 -5.421
    Velocity Z (km/s) -6.777 5.103

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-2354
    Semimajor Axis (a) 6821.219 km 6821.924 km
    Eccentricity (e) 0.000384 0.000489
    Inclination (i) 98.0711° 53.1477°
    RAAN 310.1156° 121.5119°
    Perigee Argument 203.5892° 108.1557°
    Mean Anomaly (M) 187.2732° 251.9981°
    Apogee 445.699 km 447.126 km
    Perigee 440.465 km 440.448 km
    Orbit Epoch 2026-09-11T02:40:43+0000 2026-09-11T01:32:35+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