Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.520666E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T19:41:55+0800
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    1 Object 1

    AOE ID 44609
    NORAD ID 44609
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 56471
    NORAD ID 56471
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-2D DEB STARLINK-5521
    Time of Closest Approach 2026-09-07T04:06:33+0000
    Collision Probability (Pc) 2.520666E-6
    Conjunction Distance (km) 2.044 km
    Relative Speed (km/s) 13.196 km/s
    Conjunction Risk Parameters R (Radial): 1.355 | I (In-track): 0.757 | C (Cross-track): -1.329
    Collision Risk Index (CRI) 0.43
    X Position (km) 708.172 709.544
    Position Y (km) -2303.554 -2304.805
    Position Z (km) -6522.676 -6523.529
    Velocity X (km/s) -0.81 6.797
    Velocity Y (km/s) -7.107 3.287
    Velocity Z (km/s) 2.443 -0.422

    Orbital Parameters 国际轨道数据源

    Parameter CZ-2D DEB STARLINK-5521
    Semimajor Axis (a) 6941.198 km 6950.195 km
    Eccentricity (e) 0.002650 0.000266
    Inclination (i) 97.5369° 70.0008°
    RAAN 263.9686° 32.1483°
    Perigee Argument 42.8489° 269.0038°
    Mean Anomaly (M) 317.4794° 91.0817°
    Apogee 581.454 km 573.907 km
    Perigee 544.668 km 570.209 km
    Orbit Epoch 2026-09-04T23:38:10+0000 2026-09-05T02:51:21+0000

    CZ-2D DEB & STARLINK-5521 Collision Probability (Pc) Trend

    CZ-2D DEB & STARLINK-5521 Collision Probability (Pc) TrendNot Available

    CZ-2D DEB & STARLINK-5521 Miss Distance (Miss Distance) Trend

    CZ-2D DEB & STARLINK-5521 Miss Distance (Miss Distance) TrendNot Available

    CZ-2D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5521Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-2D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5521Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-2D DEB

    No nearby objects data