Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.297593E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:49:21+0800
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    1 Object 1

    AOE ID 53400
    NORAD ID 53400
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58784
    NORAD ID 58784
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4520 STARLINK-31039
    Time of Closest Approach 2026-09-05T13:26:01+0000
    Collision Probability (Pc) 1.297593E-6
    Conjunction Distance (km) 2.729 km
    Relative Speed (km/s) 11.262 km/s
    Conjunction Risk Parameters R (Radial): 2.608 | I (In-track): -0.537 | C (Cross-track): 0.598
    Collision Risk Index (CRI) 0.37
    X Position (km) 3510.404 3512.397
    Position Y (km) 4942.044 4943.461
    Position Z (km) 3156.403 3157.614
    Velocity X (km/s) -5.72 -2.698
    Velocity Y (km/s) 0.864 5.116
    Velocity Z (km/s) 4.991 -4.99

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4520 STARLINK-31039
    Semimajor Axis (a) 6837.795 km 6840.878 km
    Eccentricity (e) 0.000127 0.000135
    Inclination (i) 53.1608° 53.1604°
    RAAN 45.5741° 272.0203°
    Perigee Argument 77.9916° 83.3363°
    Mean Anomaly (M) 56.8003° 276.7793°
    Apogee 460.530 km 463.663 km
    Perigee 458.786 km 461.819 km
    Orbit Epoch 2026-09-02T14:00:02+0000 2026-09-02T11:19:59+0000

    STARLINK-4520 & STARLINK-31039 Collision Probability (Pc) Trend

    STARLINK-4520 & STARLINK-31039 Collision Probability (Pc) TrendNot Available

    STARLINK-4520 & STARLINK-31039 Miss Distance (Miss Distance) Trend

    STARLINK-4520 & STARLINK-31039 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4520Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31039Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4520Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31039Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4520

    No nearby objects data