Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.277753E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T07:39:36+0800
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    1 Object 1

    AOE ID 48327
    NORAD ID 48327
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53488
    NORAD ID 53488
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2502 STARLINK-4421
    Time of Closest Approach 2026-09-06T22:40:25+0000
    Collision Probability (Pc) 9.277753E-7
    Conjunction Distance (km) 2.819 km
    Relative Speed (km/s) 6.743 km/s
    Conjunction Risk Parameters R (Radial): -2.477 | I (In-track): 1.208 | C (Cross-track): 0.587
    Collision Risk Index (CRI) 0.34
    X Position (km) 5899.3 5896.496
    Position Y (km) 366.617 366.86
    Position Z (km) 3450.863 3450.716
    Velocity X (km/s) -3.101 -3.741
    Velocity Y (km/s) 5.118 -1.356
    Velocity Z (km/s) 4.741 6.516

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2502 STARLINK-4421
    Semimajor Axis (a) 6848.874 km 6843.710 km
    Eccentricity (e) 0.000168 0.000110
    Inclination (i) 53.1591° 97.2849°
    RAAN 348.2659° 5.2027°
    Perigee Argument 72.5055° 98.0663°
    Mean Anomaly (M) 287.6130° 262.0705°
    Apogee 471.885 km 466.328 km
    Perigee 469.589 km 464.818 km
    Orbit Epoch 2026-09-04T15:41:37+0000 2026-09-04T06:19:46+0000

    STARLINK-2502 & STARLINK-4421 Collision Probability (Pc) Trend

    STARLINK-2502 & STARLINK-4421 Collision Probability (Pc) TrendNot Available

    STARLINK-2502 & STARLINK-4421 Miss Distance (Miss Distance) Trend

    STARLINK-2502 & STARLINK-4421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2502Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2502Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2502

    No nearby objects data