Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.301253E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T18:11:36+0800
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    1 Object 1

    AOE ID 52331
    NORAD ID 52331
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 52857
    NORAD ID 52857
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3889 STARLINK-4199
    Time of Closest Approach 2026-10-20T07:06:46+0000
    Collision Probability (Pc) 1.301253E-6
    Conjunction Distance (km) 2.808 km
    Relative Speed (km/s) 12.145 km/s
    Conjunction Risk Parameters R (Radial): 2.807 | I (In-track): -0.052 | C (Cross-track): -0.079
    Collision Risk Index (CRI) 0.37
    X Position (km) 528.568 528.88
    Position Y (km) 6734.693 6737.451
    Position Z (km) 1056.516 1056.943
    Velocity X (km/s) -4.546 -4.693
    Velocity Y (km/s) 1.306 -0.581
    Velocity Z (km/s) -5.998 5.997

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3889 STARLINK-4199
    Semimajor Axis (a) 6837.924 km 6840.857 km
    Eccentricity (e) 0.000148 0.000122
    Inclination (i) 53.1590° 53.1591°
    RAAN 279.7053° 84.2698°
    Perigee Argument 75.8896° 84.7641°
    Mean Anomaly (M) 284.2271° 275.3501°
    Apogee 460.802 km 463.556 km
    Perigee 458.772 km 461.884 km
    Orbit Epoch 2026-10-18T16:53:14+0000 2026-10-19T02:55:34+0000

    STARLINK-3889 & STARLINK-4199 Collision Probability (Pc) Trend

    STARLINK-3889 & STARLINK-4199 Collision Probability (Pc) TrendNot Available

    STARLINK-3889 & STARLINK-4199 Miss Distance (Miss Distance) Trend

    STARLINK-3889 & STARLINK-4199 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3889Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4199Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3889Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4199Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3889

    No nearby objects data