Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.459879E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T07:16:55+0800
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    1 Object 1

    AOE ID 44350
    NORAD ID 44350
    Object Type PAYLOAD
    Country
    TW TW
    VS

    2 Object 2

    AOE ID 55634
    NORAD ID 55634
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FORMOSAT7-4/COSMIC2-4 STARLINK-5500
    Time of Closest Approach 2026-09-06T06:40:54+0000
    Collision Probability (Pc) 4.459879E-6
    Conjunction Distance (km) 1.599 km
    Relative Speed (km/s) 10.947 km/s
    Conjunction Risk Parameters R (Radial): 0.351 | I (In-track): -1.082 | C (Cross-track): 1.123
    Collision Risk Index (CRI) 0.48
    X Position (km) 1920.619 1919.317
    Position Y (km) -6609.489 -6610.139
    Position Z (km) 972.086 972.747
    Velocity X (km/s) 6.598 2.791
    Velocity Y (km/s) 2.348 -0.232
    Velocity Z (km/s) 2.895 -7.038

    Orbital Parameters 国际轨道数据源

    Parameter FORMOSAT7-4/COSMIC2-4 STARLINK-5500
    Semimajor Axis (a) 6954.977 km 6950.196 km
    Eccentricity (e) 0.000133 0.000273
    Inclination (i) 23.9978° 69.9993°
    RAAN 280.3002° 114.7741°
    Perigee Argument 51.6006° 265.6561°
    Mean Anomaly (M) 308.4614° 94.4286°
    Apogee 577.766 km 573.960 km
    Perigee 575.914 km 570.158 km
    Orbit Epoch 2026-09-04T09:47:37+0000 2026-09-04T01:02:44+0000

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5500 Collision Probability (Pc) Trend

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5500 Collision Probability (Pc) TrendNot Available

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5500 Miss Distance (Miss Distance) Trend

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5500 Miss Distance (Miss Distance) TrendNot Available

    FORMOSAT7-4/COSMIC2-4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5500Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FORMOSAT7-4/COSMIC2-4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5500Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FORMOSAT7-4/COSMIC2-4

    No nearby objects data