Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.244386E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T02:39:02+0800
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    1 Object 1

    AOE ID 46718
    NORAD ID 46718
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 62019
    NORAD ID 62019
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1821 STARLINK-11404
    Time of Closest Approach 2026-09-13T12:53:57+0000
    Collision Probability (Pc) 1.244386E-6
    Conjunction Distance (km) 2.887 km
    Relative Speed (km/s) 11.979 km/s
    Conjunction Risk Parameters R (Radial): 2.853 | I (In-track): -0.281 | C (Cross-track): 0.342
    Collision Risk Index (CRI) 0.37
    X Position (km) -5638.233 -5635.631
    Position Y (km) -3112.378 -3111.447
    Position Z (km) 1980.421 1979.588
    Velocity X (km/s) 0.793 3.883
    Velocity Y (km/s) -5.09 -3.37
    Velocity Z (km/s) -5.717 5.728

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1821 STARLINK-11404
    Semimajor Axis (a) 6741.205 km 6737.690 km
    Eccentricity (e) 0.000158 0.000125
    Inclination (i) 53.0351° 53.1582°
    RAAN 50.9231° 201.8720°
    Perigee Argument 200.3953° 69.1283°
    Mean Anomaly (M) 159.7000° 290.9868°
    Apogee 364.134 km 360.393 km
    Perigee 362.002 km 358.713 km
    Orbit Epoch 2026-09-11T18:56:40+0000 2026-09-12T06:15:00+0000

    STARLINK-1821 & STARLINK-11404 Collision Probability (Pc) Trend

    STARLINK-1821 & STARLINK-11404 Collision Probability (Pc) TrendNot Available

    STARLINK-1821 & STARLINK-11404 Miss Distance (Miss Distance) Trend

    STARLINK-1821 & STARLINK-11404 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1821Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11404Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1821Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11404Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1821

    No nearby objects data