Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.345436E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T16:07:24+0800
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    1 Object 1

    AOE ID 52607
    NORAD ID 52607
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53494
    NORAD ID 53494
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3947 STARLINK-4340
    Time of Closest Approach 2026-09-12T11:43:51+0000
    Collision Probability (Pc) 1.345436E-6
    Conjunction Distance (km) 2.92 km
    Relative Speed (km/s) 14.082 km/s
    Conjunction Risk Parameters R (Radial): -2.897 | I (In-track): 0.131 | C (Cross-track): -0.336
    Collision Risk Index (CRI) 0.38
    X Position (km) -4673.287 -4671.336
    Position Y (km) -1712 -1711.603
    Position Z (km) 4695.535 4693.399
    Velocity X (km/s) 4.953 -5.309
    Velocity Y (km/s) -4.889 -0.527
    Velocity Z (km/s) 3.138 -5.461

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3947 STARLINK-4340
    Semimajor Axis (a) 6848.861 km 6843.695 km
    Eccentricity (e) 0.000134 0.000135
    Inclination (i) 53.1595° 97.2881°
    RAAN 157.8865° 12.0059°
    Perigee Argument 97.8606° 94.3607°
    Mean Anomaly (M) 262.2548° 265.7791°
    Apogee 471.644 km 466.485 km
    Perigee 469.804 km 464.631 km
    Orbit Epoch 2026-09-11T21:22:49+0000 2026-09-11T06:56:57+0000

    STARLINK-3947 & STARLINK-4340 Collision Probability (Pc) Trend

    STARLINK-3947 & STARLINK-4340 Collision Probability (Pc) TrendNot Available

    STARLINK-3947 & STARLINK-4340 Miss Distance (Miss Distance) Trend

    STARLINK-3947 & STARLINK-4340 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3947Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4340Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3947Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4340Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3947

    No nearby objects data