Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.297431E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T03:16:44+0800
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    1 Object 1

    AOE ID 53249
    NORAD ID 53249
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 65183
    NORAD ID 65183
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4128 STARLINK-34939
    Time of Closest Approach 2026-09-13T11:16:53+0000
    Collision Probability (Pc) 1.297431E-6
    Conjunction Distance (km) 2.561 km
    Relative Speed (km/s) 9.494 km/s
    Conjunction Risk Parameters R (Radial): 2.355 | I (In-track): 0.791 | C (Cross-track): 0.62
    Collision Risk Index (CRI) 0.37
    X Position (km) 2056.83 2056.026
    Position Y (km) -4005.058 -4004.49
    Position Z (km) -5168.229 -5165.866
    Velocity X (km/s) 5.12 -3.882
    Velocity Y (km/s) 5.262 4.341
    Velocity Z (km/s) -2.042 -4.914

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4128 STARLINK-34939
    Semimajor Axis (a) 6848.893 km 6843.704 km
    Eccentricity (e) 0.000114 0.000250
    Inclination (i) 53.1600° 97.2830°
    RAAN 65.6076° 124.2900°
    Perigee Argument 88.0065° 94.1735°
    Mean Anomaly (M) 272.1066° 265.9794°
    Apogee 471.535 km 467.279 km
    Perigee 469.977 km 463.855 km
    Orbit Epoch 2026-09-11T19:02:33+0000 2026-09-12T02:57:43+0000

    STARLINK-4128 & STARLINK-34939 Collision Probability (Pc) Trend

    STARLINK-4128 & STARLINK-34939 Collision Probability (Pc) TrendNot Available

    STARLINK-4128 & STARLINK-34939 Miss Distance (Miss Distance) Trend

    STARLINK-4128 & STARLINK-34939 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4128Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34939Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4128Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34939Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4128

    No nearby objects data