Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.121579E-5
    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 67165
    NORAD ID 67165
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-36186
    Time of Closest Approach 2026-09-17T07:59:46+0000
    Collision Probability (Pc) 4.121579E-5
    Conjunction Distance (km) 0.754 km
    Relative Speed (km/s) 7.052 km/s
    Conjunction Risk Parameters R (Radial): -0.388 | I (In-track): -0.572 | C (Cross-track): -0.299
    Collision Risk Index (CRI) 0.67
    X Position (km) -3159.779 -3159.355
    Position Y (km) 5984.255 5983.934
    Position Z (km) 1122.313 1122.847
    Velocity X (km/s) 0.264 -5.393
    Velocity Y (km/s) 1.556 -1.893
    Velocity Z (km/s) -7.462 -5.051

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-36186
    Semimajor Axis (a) 6861.809 km 6861.161 km
    Eccentricity (e) 0.000932 0.000044
    Inclination (i) 97.1397° 43.0001°
    RAAN 294.9207° 318.6048°
    Perigee Argument 124.2617° 196.8006°
    Mean Anomaly (M) 235.9507° 163.2831°
    Apogee 490.065 km 483.329 km
    Perigee 477.279 km 482.719 km
    Orbit Epoch 2026-09-15T12:48:01+0000 2026-09-15T11:20:03+0000

    YAOGAN 21 & STARLINK-36186 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-36186 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-36186 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-36186 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36186Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36186Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data