Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.253169E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T15:59:15+0800
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    1 Object 1

    AOE ID 48865
    NORAD ID 48865
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 53257
    NORAD ID 53257
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2550 STARLINK-4144
    Time of Closest Approach 2026-09-15T20:45:59+0000
    Collision Probability (Pc) 1.253169E-4
    Conjunction Distance (km) 0.581 km
    Relative Speed (km/s) 12.038 km/s
    Conjunction Risk Parameters R (Radial): -0.579 | I (In-track): -0.022 | C (Cross-track): -0.034
    Collision Risk Index (CRI) 0.77
    X Position (km) -5125.634 -5126.047
    Position Y (km) -2186.556 -2186.775
    Position Z (km) 3971.784 3972.129
    Velocity X (km/s) 5.012 -0.558
    Velocity Y (km/s) -1.819 -6.349
    Velocity Z (km/s) 5.46 -4.203

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2550 STARLINK-4144
    Semimajor Axis (a) 6842.497 km 6848.841 km
    Eccentricity (e) 0.000835 0.000101
    Inclination (i) 67.1433° 53.1603°
    RAAN 190.5560° 64.6314°
    Perigee Argument 268.3274° 96.5639°
    Mean Anomaly (M) 91.6925° 263.5478°
    Apogee 470.071 km 471.397 km
    Perigee 458.649 km 470.011 km
    Orbit Epoch 2026-09-14T05:28:22+0000 2026-09-13T21:12:25+0000

    COSMOS 2550 & STARLINK-4144 Collision Probability (Pc) Trend

    COSMOS 2550 & STARLINK-4144 Collision Probability (Pc) TrendNot Available

    COSMOS 2550 & STARLINK-4144 Miss Distance (Miss Distance) Trend

    COSMOS 2550 & STARLINK-4144 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2550Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4144Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2550Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4144Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2550

    No nearby objects data