Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.144216E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T16:37:29+0800
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    1 Object 1

    AOE ID 63316
    NORAD ID 63316
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64127
    NORAD ID 64127
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-11645 STARLINK-11721
    Time of Closest Approach 2026-09-13T22:35:42+0000
    Collision Probability (Pc) 9.144216E-7
    Conjunction Distance (km) 2.701 km
    Relative Speed (km/s) 5.922 km/s
    Conjunction Risk Parameters R (Radial): -1.034 | I (In-track): 2.302 | C (Cross-track): -0.962
    Collision Risk Index (CRI) 0.34
    X Position (km) -4813.232 -4813.569
    Position Y (km) 2307.37 2304.765
    Position Z (km) -4107.312 -4106.683
    Velocity X (km/s) -4.695 -1.438
    Velocity Y (km/s) -5.622 -7.183
    Velocity Z (km/s) 2.346 -2.346

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-11645 STARLINK-11721
    Semimajor Axis (a) 6734.553 km 6734.540 km
    Eccentricity (e) 0.000104 0.000157
    Inclination (i) 43.0001° 43.0004°
    RAAN 228.0149° 299.7231°
    Perigee Argument 266.5159° 267.9096°
    Mean Anomaly (M) 93.5590° 92.1592°
    Apogee 357.116 km 357.457 km
    Perigee 355.716 km 355.349 km
    Orbit Epoch 2026-09-10T23:09:36+0000 2026-09-10T11:11:23+0000

    STARLINK-11645 & STARLINK-11721 Collision Probability (Pc) Trend

    STARLINK-11645 & STARLINK-11721 Collision Probability (Pc) TrendNot Available

    STARLINK-11645 & STARLINK-11721 Miss Distance (Miss Distance) Trend

    STARLINK-11645 & STARLINK-11721 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-11645Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11721Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-11645Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11721Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-11645

    No nearby objects data