Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.383561E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:54:19+0800
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    1 Object 1

    AOE ID 40143
    NORAD ID 40143
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 64314
    NORAD ID 64314
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-34354
    Time of Closest Approach 2026-09-17T12:27:08+0000
    Collision Probability (Pc) 1.383561E-6
    Conjunction Distance (km) 2.846 km
    Relative Speed (km/s) 13.938 km/s
    Conjunction Risk Parameters R (Radial): 1.44 | I (In-track): -1.006 | C (Cross-track): -2.238
    Collision Risk Index (CRI) 0.38
    X Position (km) -1798.606 -1796.616
    Position Y (km) 1790.137 1790.655
    Position Z (km) 6361.335 6363.302
    Velocity X (km/s) -2.927 -3.059
    Velocity Y (km/s) 6.526 -6.901
    Velocity Z (km/s) -2.659 1.076

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-34354
    Semimajor Axis (a) 6861.809 km 6855.198 km
    Eccentricity (e) 0.000932 0.000352
    Inclination (i) 97.1397° 69.9993°
    RAAN 294.9207° 75.8524°
    Perigee Argument 124.2617° 265.2643°
    Mean Anomaly (M) 235.9507° 94.8130°
    Apogee 490.065 km 479.475 km
    Perigee 477.279 km 474.647 km
    Orbit Epoch 2026-09-15T12:48:01+0000 2026-09-14T22:53:16+0000

    YAOGAN 21 & STARLINK-34354 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-34354 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-34354 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-34354 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34354Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34354Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data