Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.421158E-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 57858
    NORAD ID 57858
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-30290
    Time of Closest Approach 2026-09-05T12:34:54+0000
    Collision Probability (Pc) 1.421158E-6
    Conjunction Distance (km) 2.858 km
    Relative Speed (km/s) 14.754 km/s
    Conjunction Risk Parameters R (Radial): -1.49 | I (In-track): 0.616 | C (Cross-track): -2.359
    Collision Risk Index (CRI) 0.38
    X Position (km) 6528.299 6527.126
    Position Y (km) 134.1 136.309
    Position Z (km) -2055.726 -2054.344
    Velocity X (km/s) 2.301 -1.877
    Velocity Y (km/s) -1.159 4.758
    Velocity Z (km/s) 7.188 -5.665

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-30290
    Semimajor Axis (a) 6849.832 km 6840.878 km
    Eccentricity (e) 0.002812 0.000138
    Inclination (i) 98.6734° 53.1599°
    RAAN 355.8296° 175.6406°
    Perigee Argument 288.0615° 80.2978°
    Mean Anomaly (M) 71.7559° 279.8181°
    Apogee 490.960 km 463.688 km
    Perigee 452.430 km 461.794 km
    Orbit Epoch 2026-09-03T07:20:27+0000 2026-09-03T19:03:38+0000

    CZ-4 DEB & STARLINK-30290 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-30290 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-30290 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-30290 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30290Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30290Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data