Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.478789E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T16:48:58+0800
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    1 Object 1

    AOE ID 53729
    NORAD ID 53729
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69207
    NORAD ID 69207
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4651 STARLINK-37647
    Time of Closest Approach 2026-09-13T17:44:40+0000
    Collision Probability (Pc) 6.478789E-7
    Conjunction Distance (km) 2.502 km
    Relative Speed (km/s) 2.478 km/s
    Conjunction Risk Parameters R (Radial): 2.425 | I (In-track): 0.607 | C (Cross-track): -0.101
    Collision Risk Index (CRI) 0.31
    X Position (km) 3021.633 3022.28
    Position Y (km) 2859.811 2861.27
    Position Z (km) -5433.803 -5435.729
    Velocity X (km/s) -4.457 -5.885
    Velocity Y (km/s) 6.141 4.788
    Velocity Z (km/s) 0.754 -0.752

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4651 STARLINK-37647
    Semimajor Axis (a) 6837.870 km 6840.838 km
    Eccentricity (e) 0.000136 0.000085
    Inclination (i) 53.1608° 53.1584°
    RAAN 125.5989° 148.6989°
    Perigee Argument 96.3678° 108.7189°
    Mean Anomaly (M) 263.7481° 251.3905°
    Apogee 460.666 km 463.282 km
    Perigee 458.800 km 462.120 km
    Orbit Epoch 2026-09-12T21:47:45+0000 2026-09-12T23:24:29+0000

    STARLINK-4651 & STARLINK-37647 Collision Probability (Pc) Trend

    STARLINK-4651 & STARLINK-37647 Collision Probability (Pc) TrendNot Available

    STARLINK-4651 & STARLINK-37647 Miss Distance (Miss Distance) Trend

    STARLINK-4651 & STARLINK-37647 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4651Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37647Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4651Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37647Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4651

    No nearby objects data