Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    8.871936E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T23:19:58+0800
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    1 Object 1

    AOE ID 52457
    NORAD ID 52457
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59644
    NORAD ID 59644
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3899 STARLINK-31789
    Time of Closest Approach 2026-09-13T20:49:41+0000
    Collision Probability (Pc) 8.871936E-4
    Conjunction Distance (km) 0.156 km
    Relative Speed (km/s) 10.805 km/s
    Conjunction Risk Parameters R (Radial): -0.055 | I (In-track): 0.103 | C (Cross-track): 0.104
    Collision Risk Index (CRI) 0.94
    X Position (km) -4655.846 -4655.906
    Position Y (km) 4539.231 4539.088
    Position Z (km) -2192.422 -2192.417
    Velocity X (km/s) -2.019 -5.214
    Velocity Y (km/s) -4.765 -3.133
    Velocity Z (km/s) -5.596 4.596

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3899 STARLINK-31789
    Semimajor Axis (a) 6859.223 km 6861.138 km
    Eccentricity (e) 0.000146 0.000129
    Inclination (i) 53.1592° 43.0016°
    RAAN 313.2124° 172.4270°
    Perigee Argument 85.2784° 274.3665°
    Mean Anomaly (M) 107.0648° 85.7039°
    Apogee 482.089 km 483.888 km
    Perigee 480.083 km 482.114 km
    Orbit Epoch 2026-09-11T06:00:02+0000 2026-09-11T03:02:36+0000

    STARLINK-3899 & STARLINK-31789 Collision Probability (Pc) Trend

    STARLINK-3899 & STARLINK-31789 Collision Probability (Pc) TrendNot Available

    STARLINK-3899 & STARLINK-31789 Miss Distance (Miss Distance) Trend

    STARLINK-3899 & STARLINK-31789 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3899Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31789Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3899Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31789Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3899

    No nearby objects data