Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.767792E-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 64386
    NORAD ID 64386
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-34269
    Time of Closest Approach 2026-09-16T20:25:43+0000
    Collision Probability (Pc) 1.767792E-6
    Conjunction Distance (km) 2.374 km
    Relative Speed (km/s) 12.721 km/s
    Conjunction Risk Parameters R (Radial): -1.8 | I (In-track): -0.85 | C (Cross-track): 1.293
    Collision Risk Index (CRI) 0.4
    X Position (km) 1753.793 1752.502
    Position Y (km) -4850.639 -4850.403
    Position Z (km) 4518.513 4516.535
    Velocity X (km/s) -2.874 7.374
    Velocity Y (km/s) 4.244 1.416
    Velocity Z (km/s) 5.646 -1.337

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-34269
    Semimajor Axis (a) 6861.809 km 6861.164 km
    Eccentricity (e) 0.000932 0.000139
    Inclination (i) 97.1397° 43.0028°
    RAAN 294.9207° 189.5794°
    Perigee Argument 124.2617° 265.6980°
    Mean Anomaly (M) 235.9507° 94.3714°
    Apogee 490.065 km 483.978 km
    Perigee 477.279 km 482.076 km
    Orbit Epoch 2026-09-15T12:48:01+0000 2026-09-15T03:10:18+0000

    YAOGAN 21 & STARLINK-34269 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-34269 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-34269 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-34269 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34269Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34269Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data