Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.295362E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T13:55:02+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 57368
    NORAD ID 57368
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-6218
    Time of Closest Approach 2026-10-20T23:09:48+0000
    Collision Probability (Pc) 1.295362E-6
    Conjunction Distance (km) 2.675 km
    Relative Speed (km/s) 10.67 km/s
    Conjunction Risk Parameters R (Radial): 1.335 | I (In-track): -1.656 | C (Cross-track): -1.621
    Collision Risk Index (CRI) 0.37
    X Position (km) 4641.375 4642.181
    Position Y (km) -2135.984 -2134.895
    Position Z (km) -4584.671 -4582.364
    Velocity X (km/s) 4.019 3.986
    Velocity Y (km/s) -3.249 6.407
    Velocity Z (km/s) 5.595 1.054

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-6218
    Semimajor Axis (a) 6860.832 km 6861.193 km
    Eccentricity (e) 0.000843 0.000188
    Inclination (i) 97.1356° 43.0054°
    RAAN 326.8973° 63.8286°
    Perigee Argument 26.5943° 290.0809°
    Mean Anomaly (M) 333.5728° 69.9840°
    Apogee 488.476 km 484.344 km
    Perigee 476.914 km 481.768 km
    Orbit Epoch 2026-10-18T22:36:58+0000 2026-10-18T10:18:12+0000

    YAOGAN 21 & STARLINK-6218 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-6218 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-6218 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-6218 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-6218Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-6218Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data