Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.848997E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-08-31T02:20:41+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 67627
    NORAD ID 67627
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-36502
    Time of Closest Approach 2026-08-30T18:46:02+0000
    Collision Probability (Pc) 2.848997E-6
    Conjunction Distance (km) 1.75 km
    Relative Speed (km/s) 8.338 km/s
    Conjunction Risk Parameters R (Radial): 0.527 | I (In-track): 1.396 | C (Cross-track): -0.915
    Collision Risk Index (CRI) 0.44
    X Position (km) -578.569 -577.904
    Position Y (km) 5888.458 5888.839
    Position Z (km) -3479.32 -3477.747
    Velocity X (km/s) 1.467 -6.234
    Velocity Y (km/s) -3.69 -2.664
    Velocity Z (km/s) -6.504 -3.479

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-36502
    Semimajor Axis (a) 6862.209 km 6861.132 km
    Eccentricity (e) 0.000782 0.000058
    Inclination (i) 97.1420° 42.9992°
    RAAN 279.6152° 239.3203°
    Perigee Argument 174.3847° 249.5959°
    Mean Anomaly (M) 185.7482° 110.4830°
    Apogee 489.437 km 483.393 km
    Perigee 478.707 km 482.597 km
    Orbit Epoch 2026-08-30T13:07:50+0000 2026-08-30T06:47:21+0000

    YAOGAN 21 & STARLINK-36502 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-36502 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-36502 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-36502 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36502Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36502Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data