Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.389361E-5
    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 2026-09-14T13:56:18+0000
    Collision Probability (Pc) 1.389361E-5
    Conjunction Distance (km) 1.194 km
    Relative Speed (km/s) 13.712 km/s
    Conjunction Risk Parameters R (Radial): 1.185 | I (In-track): 0.056 | C (Cross-track): -0.129
    Collision Risk Index (CRI) 0.58
    X Position (km) 4401.735 4402.59
    Position Y (km) -1415.398 -1415.559
    Position Z (km) 5077.895 5078.711
    Velocity X (km/s) -0.378 4.828
    Velocity Y (km/s) 7.243 -3.082
    Velocity Z (km/s) 2.341 -5.027

    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