Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.376026E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T13:24:35+0800
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    1 Object 1

    AOE ID 26121
    NORAD ID 26121
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 63932
    NORAD ID 63932
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-33971
    Time of Closest Approach 2026-09-05T20:31:13+0000
    Collision Probability (Pc) 2.376026E-6
    Conjunction Distance (km) 2.173 km
    Relative Speed (km/s) 15.187 km/s
    Conjunction Risk Parameters R (Radial): 0.159 | I (In-track): 0.226 | C (Cross-track): -2.155
    Collision Risk Index (CRI) 0.43
    X Position (km) 6822.644 6822.826
    Position Y (km) -229.511 -227.42
    Position Z (km) 573.918 574.478
    Velocity X (km/s) -0.658 0.693
    Velocity Y (km/s) -1.133 2.596
    Velocity Z (km/s) 7.518 -7.142

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-33971
    Semimajor Axis (a) 6849.832 km 6875.536 km
    Eccentricity (e) 0.002812 0.000329
    Inclination (i) 98.6734° 70.0002°
    RAAN 355.8296° 185.1700°
    Perigee Argument 288.0615° 271.6104°
    Mean Anomaly (M) 71.7559° 312.6277°
    Apogee 490.960 km 499.664 km
    Perigee 452.430 km 495.134 km
    Orbit Epoch 2026-09-03T07:20:27+0000 2026-09-03T20:00:02+0000

    CZ-4 DEB & STARLINK-33971 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-33971 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-33971 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-33971 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33971Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33971Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data