Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.817498E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T00:48:53+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 68011
    NORAD ID 68011
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5520 STARLINK-36991
    Time of Closest Approach 2026-09-13T06:00:21+0000
    Collision Probability (Pc) 5.817498E-6
    Conjunction Distance (km) 0.989 km
    Relative Speed (km/s) 1.327 km/s
    Conjunction Risk Parameters R (Radial): 0.225 | I (In-track): -0.958 | C (Cross-track): 0.084
    Collision Risk Index (CRI) 0.5
    X Position (km) 4456.042 4455.737
    Position Y (km) -2355.659 -2356.587
    Position Z (km) -4658.943 -4659.096
    Velocity X (km/s) 3.944 3.149
    Velocity Y (km/s) 6.499 6.919
    Velocity Z (km/s) 0.487 -0.488

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5520 STARLINK-36991
    Semimajor Axis (a) 6861.206 km 6861.137 km
    Eccentricity (e) 0.000120 0.000055
    Inclination (i) 43.0023° 43.0032°
    RAAN 66.5431° 83.0395°
    Perigee Argument 265.5160° 281.8590°
    Mean Anomaly (M) 94.5554° 78.2200°
    Apogee 483.895 km 483.376 km
    Perigee 482.243 km 482.624 km
    Orbit Epoch 2026-09-11T04:09:30+0000 2026-09-10T20:21:41+0000

    STARLINK-5520 & STARLINK-36991 Collision Probability (Pc) Trend

    STARLINK-5520 & STARLINK-36991 Collision Probability (Pc) TrendNot Available

    STARLINK-5520 & STARLINK-36991 Miss Distance (Miss Distance) Trend

    STARLINK-5520 & STARLINK-36991 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5520Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36991Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5520Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36991Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5520

    No nearby objects data