Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.07769E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T16:47:57+0800
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    1 Object 1

    AOE ID 53719
    NORAD ID 53719
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69152
    NORAD ID 69152
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4644 STARLINK-37317
    Time of Closest Approach 2026-09-15T18:01:12+0000
    Collision Probability (Pc) 5.07769E-7
    Conjunction Distance (km) 2 km
    Relative Speed (km/s) 0.444 km/s
    Conjunction Risk Parameters R (Radial): -0.382 | I (In-track): 1.962 | C (Cross-track): 0.054
    Collision Risk Index (CRI) 0.29
    X Position (km) -4091.09 -4090.997
    Position Y (km) 279.483 277.509
    Position Z (km) 5465.665 5465.357
    Velocity X (km/s) -0.698 -0.342
    Velocity Y (km/s) -7.606 -7.63
    Velocity Z (km/s) -0.133 0.131

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4644 STARLINK-37317
    Semimajor Axis (a) 6840.870 km 6840.843 km
    Eccentricity (e) 0.000118 0.000145
    Inclination (i) 53.1585° 53.1578°
    RAAN 97.1807° 102.8625°
    Perigee Argument 88.4035° 102.2849°
    Mean Anomaly (M) 271.7103° 257.8316°
    Apogee 463.539 km 463.700 km
    Perigee 461.927 km 461.712 km
    Orbit Epoch 2026-09-12T22:24:15+0000 2026-09-12T14:36:04+0000

    STARLINK-4644 & STARLINK-37317 Collision Probability (Pc) Trend

    STARLINK-4644 & STARLINK-37317 Collision Probability (Pc) TrendNot Available

    STARLINK-4644 & STARLINK-37317 Miss Distance (Miss Distance) Trend

    STARLINK-4644 & STARLINK-37317 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4644Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37317Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4644Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37317Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4644

    No nearby objects data