Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.520744E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-02T17:32:12+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 64294
    NORAD ID 64294
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-34388
    Time of Closest Approach 2026-09-02T09:38:28+0000
    Collision Probability (Pc) 1.520744E-6
    Conjunction Distance (km) 2.752 km
    Relative Speed (km/s) 15.123 km/s
    Conjunction Risk Parameters R (Radial): 2.653 | I (In-track): 0.096 | C (Cross-track): 0.723
    Collision Risk Index (CRI) 0.39
    X Position (km) -976.341 -977.4
    Position Y (km) 6150.994 6153.181
    Position Z (km) -2884.55 -2885.84
    Velocity X (km/s) 1.527 -3.3
    Velocity Y (km/s) -2.962 2.476
    Velocity Z (km/s) -6.854 6.405

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-34388
    Semimajor Axis (a) 6862.155 km 6877.075 km
    Eccentricity (e) 0.000803 0.000196
    Inclination (i) 97.1414° 70.0008°
    RAAN 281.9363° 110.2296°
    Perigee Argument 167.0421° 255.1719°
    Mean Anomaly (M) 193.1027° 199.4050°
    Apogee 489.529 km 500.285 km
    Perigee 478.507 km 497.591 km
    Orbit Epoch 2026-09-01T23:18:44+0000 2026-09-01T20:00:02+0000

    YAOGAN 21 & STARLINK-34388 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-34388 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-34388 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-34388 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34388Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34388Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data