Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.848976E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-06T20:07:43+0800
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    1 Object 1

    AOE ID 40420
    NORAD ID 40420
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 53556
    NORAD ID 53556
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2503 STARLINK-4505
    Time of Closest Approach 2026-09-06T13:08:19+0000
    Collision Probability (Pc) 8.848976E-7
    Conjunction Distance (km) 2.864 km
    Relative Speed (km/s) 6.418 km/s
    Conjunction Risk Parameters R (Radial): -2.697 | I (In-track): 0.872 | C (Cross-track): 0.404
    Collision Risk Index (CRI) 0.34
    X Position (km) 4137.509 4138.661
    Position Y (km) -4717.543 -4719.27
    Position Z (km) -2915.368 -2917.339
    Velocity X (km/s) 1.226 5.351
    Velocity Y (km/s) -3.126 1.506
    Velocity Z (km/s) 6.812 5.165

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2503 STARLINK-4505
    Semimajor Axis (a) 6924.145 km 6917.902 km
    Eccentricity (e) 0.001558 0.000101
    Inclination (i) 97.8231° 53.1618°
    RAAN 306.1781° 334.2944°
    Perigee Argument 346.4654° 90.5677°
    Mean Anomaly (M) 13.6153° 269.5430°
    Apogee 556.798 km 540.463 km
    Perigee 535.218 km 539.067 km
    Orbit Epoch 2026-09-05T03:46:50+0000 2026-09-05T22:58:17+0000

    COSMOS 2503 & STARLINK-4505 Collision Probability (Pc) Trend

    COSMOS 2503 & STARLINK-4505 Collision Probability (Pc) TrendNot Available

    COSMOS 2503 & STARLINK-4505 Miss Distance (Miss Distance) Trend

    COSMOS 2503 & STARLINK-4505 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2503Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4505Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2503Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4505Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2503

    No nearby objects data