Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.23751E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:41:45+0800
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    1 Object 1

    AOE ID 53831
    NORAD ID 53831
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58502
    NORAD ID 58502
    Object Type UNKNOWN
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4649 OBJECT A
    Time of Closest Approach 2026-09-04T03:20:05+0000
    Collision Probability (Pc) 1.23751E-6
    Conjunction Distance (km) 2.497 km
    Relative Speed (km/s) 8.14 km/s
    Conjunction Risk Parameters R (Radial): -0.456 | I (In-track): 2.081 | C (Cross-track): -1.302
    Collision Risk Index (CRI) 0.37
    X Position (km) -957.461 -958.717
    Position Y (km) -4955.358 -4957.021
    Position Z (km) 4608.473 4607.098
    Velocity X (km/s) 6.662 -0.351
    Velocity Y (km/s) 1.779 5.234
    Velocity Z (km/s) 3.288 5.554

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4649 OBJECT A
    Semimajor Axis (a) 6840.870 km 6842.375 km
    Eccentricity (e) 0.000130 0.001034
    Inclination (i) 53.1613° 97.4369°
    RAAN 224.7459° 264.3810°
    Perigee Argument 82.6035° 352.7044°
    Mean Anomaly (M) 277.5115° 7.4047°
    Apogee 463.623 km 471.315 km
    Perigee 461.843 km 457.161 km
    Orbit Epoch 2026-09-02T05:45:04+0000 2026-09-02T15:08:20+0000

    STARLINK-4649 & OBJECT A Collision Probability (Pc) Trend

    STARLINK-4649 & OBJECT A Collision Probability (Pc) TrendNot Available

    STARLINK-4649 & OBJECT A Miss Distance (Miss Distance) Trend

    STARLINK-4649 & OBJECT A Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4649Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4649Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4649

    No nearby objects data