Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.033929E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:54:24+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 57895
    NORAD ID 57895
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-30467
    Time of Closest Approach 2026-09-16T20:58:02+0000
    Collision Probability (Pc) 2.033929E-6
    Conjunction Distance (km) 1.916 km
    Relative Speed (km/s) 7.214 km/s
    Conjunction Risk Parameters R (Radial): 1.036 | I (In-track): -1.419 | C (Cross-track): -0.763
    Collision Risk Index (CRI) 0.41
    X Position (km) -3123.484 -3123.27
    Position Y (km) 5857.136 5857.957
    Position Z (km) 1724.686 1726.403
    Velocity X (km/s) -0.038 -5.679
    Velocity Y (km/s) 2.152 -1.596
    Velocity Z (km/s) -7.318 -4.835

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-30467
    Semimajor Axis (a) 6861.809 km 6861.190 km
    Eccentricity (e) 0.000932 0.000121
    Inclination (i) 97.1397° 43.0013°
    RAAN 294.9207° 321.4506°
    Perigee Argument 124.2617° 276.2656°
    Mean Anomaly (M) 235.9507° 83.8058°
    Apogee 490.065 km 483.884 km
    Perigee 477.279 km 482.222 km
    Orbit Epoch 2026-09-15T12:48:01+0000 2026-09-15T14:27:42+0000

    YAOGAN 21 & STARLINK-30467 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-30467 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-30467 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-30467 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30467Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30467Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data