Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    8.620614E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T08:09:32+0800
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    1 Object 1

    AOE ID 52131
    NORAD ID 52131
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name BRO-21
    AOE ID 69007
    NORAD ID 69007
    Object Type PAYLOAD
    Country
    FR FR

    Conjunction Constraints

    Parameter STARLINK-3711 BRO-21
    Time of Closest Approach 2026-09-12T03:35:01+0000
    Collision Probability (Pc) 8.620614E-6
    Conjunction Distance (km) 1.38 km
    Relative Speed (km/s) 14.215 km/s
    Conjunction Risk Parameters R (Radial): 0.756 | I (In-track): 0.406 | C (Cross-track): -1.08
    Collision Risk Index (CRI) 0.54
    X Position (km) 4834.401 4835.666
    Position Y (km) -1956.463 -1955.913
    Position Z (km) 4470.365 4470.399
    Velocity X (km/s) -0.576 4.056
    Velocity Y (km/s) 6.717 -3.034
    Velocity Z (km/s) 3.554 -5.694

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3711 BRO-21
    Semimajor Axis (a) 6877.097 km 6878.340 km
    Eccentricity (e) 0.000389 0.000944
    Inclination (i) 53.2232° 97.3923°
    RAAN 300.8433° 150.1432°
    Perigee Argument 54.9342° 110.6028°
    Mean Anomaly (M) 305.2021° 249.6222°
    Apogee 501.636 km 506.698 km
    Perigee 496.284 km 493.708 km
    Orbit Epoch 2026-09-11T13:09:54+0000 2026-09-10T16:15:35+0000

    STARLINK-3711 & BRO-21 Collision Probability (Pc) Trend

    STARLINK-3711 & BRO-21 Collision Probability (Pc) TrendNot Available

    STARLINK-3711 & BRO-21 Miss Distance (Miss Distance) Trend

    STARLINK-3711 & BRO-21 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3711Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    BRO-21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3711Collision Probability Trend

    Object 1 Probability TrendNot Available

    BRO-21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3711

    No nearby objects data