Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.744516E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T04:33:38+0800
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    1 Object 1

    AOE ID 57219
    NORAD ID 57219
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58758
    NORAD ID 58758
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-5520 YUNYAO-1 18
    Time of Closest Approach 2026-10-21T01:50:41+0000
    Collision Probability (Pc) 2.744516E-5
    Conjunction Distance (km) 0.792 km
    Relative Speed (km/s) 4.885 km/s
    Conjunction Risk Parameters R (Radial): 0.174 | I (In-track): 0.732 | C (Cross-track): 0.249
    Collision Risk Index (CRI) 0.64
    X Position (km) 2736.573 2737.227
    Position Y (km) -4259.005 -4258.62
    Position Z (km) 4622.611 4622.836
    Velocity X (km/s) 6.737 4.214
    Velocity Y (km/s) 3.493 5.724
    Velocity Z (km/s) -0.767 2.772

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5520 YUNYAO-1 18
    Semimajor Axis (a) 6861.200 km 6865.870 km
    Eccentricity (e) 0.000135 0.000626
    Inclination (i) 43.0024° 50.0182°
    RAAN 212.0039° 260.5430°
    Perigee Argument 268.4692° 46.3543°
    Mean Anomaly (M) 91.6005° 313.7931°
    Apogee 483.990 km 492.032 km
    Perigee 482.136 km 483.434 km
    Orbit Epoch 2026-10-19T03:54:25+0000 2026-10-19T11:51:33+0000

    STARLINK-5520 & YUNYAO-1 18 Collision Probability (Pc) Trend

    STARLINK-5520 & YUNYAO-1 18 Collision Probability (Pc) TrendNot Available

    STARLINK-5520 & YUNYAO-1 18 Miss Distance (Miss Distance) Trend

    STARLINK-5520 & YUNYAO-1 18 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5520Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNYAO-1 18Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5520Collision Probability Trend

    Object 1 Probability TrendNot Available

    YUNYAO-1 18Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5520

    No nearby objects data