Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.992349E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T12:12:14+0800
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    1 Object 1

    AOE ID 52621
    NORAD ID 52621
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 54193
    NORAD ID 54193
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3984 STARLINK-5263
    Time of Closest Approach 2026-09-03T09:55:17+0000
    Collision Probability (Pc) 9.992349E-7
    Conjunction Distance (km) 2.926 km
    Relative Speed (km/s) 8.373 km/s
    Conjunction Risk Parameters R (Radial): -2.905 | I (In-track): -0.282 | C (Cross-track): -0.19
    Collision Risk Index (CRI) 0.35
    X Position (km) -3530.262 -3532
    Position Y (km) 3412.003 3413.209
    Position Z (km) -4767.056 -4769.077
    Velocity X (km/s) -6.527 -2.334
    Velocity Y (km/s) -2.558 -6.609
    Velocity Z (km/s) 3.005 -3.004

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3984 STARLINK-5263
    Semimajor Axis (a) 6837.866 km 6840.886 km
    Eccentricity (e) 0.000121 0.000106
    Inclination (i) 53.1607° 53.1597°
    RAAN 188.7340° 274.3418°
    Perigee Argument 98.2262° 79.1501°
    Mean Anomaly (M) 261.8878° 280.9620°
    Apogee 460.554 km 463.471 km
    Perigee 458.904 km 462.027 km
    Orbit Epoch 2026-09-02T02:56:23+0000 2026-09-02T07:51:56+0000

    STARLINK-3984 & STARLINK-5263 Collision Probability (Pc) Trend

    STARLINK-3984 & STARLINK-5263 Collision Probability (Pc) TrendNot Available

    STARLINK-3984 & STARLINK-5263 Miss Distance (Miss Distance) Trend

    STARLINK-3984 & STARLINK-5263 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3984Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5263Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3984Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5263Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3984

    No nearby objects data