Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.365764E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T17:03:44+0800
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    1 Object 1

    AOE ID 51990
    NORAD ID 51990
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59441
    NORAD ID 59441
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3657 STARLINK-31693
    Time of Closest Approach 2026-09-06T10:28:14+0000
    Collision Probability (Pc) 1.365764E-6
    Conjunction Distance (km) 2.578 km
    Relative Speed (km/s) 10.57 km/s
    Conjunction Risk Parameters R (Radial): -2.565 | I (In-track): 0.176 | C (Cross-track): 0.174
    Collision Risk Index (CRI) 0.38
    X Position (km) 3603.118 3604.282
    Position Y (km) -4382.324 -4384.128
    Position Z (km) 3808.424 3809.85
    Velocity X (km/s) 2.387 6.136
    Velocity Y (km/s) 5.785 1.223
    Velocity Z (km/s) 4.384 -4.384

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3657 STARLINK-31693
    Semimajor Axis (a) 6837.873 km 6840.865 km
    Eccentricity (e) 0.000116 0.000139
    Inclination (i) 53.1593° 53.1602°
    RAAN 289.9166° 171.9383°
    Perigee Argument 88.8697° 110.7847°
    Mean Anomaly (M) 271.2440° 249.3305°
    Apogee 460.531 km 463.680 km
    Perigee 458.941 km 461.776 km
    Orbit Epoch 2026-09-04T03:36:04+0000 2026-09-03T19:21:05+0000

    STARLINK-3657 & STARLINK-31693 Collision Probability (Pc) Trend

    STARLINK-3657 & STARLINK-31693 Collision Probability (Pc) TrendNot Available

    STARLINK-3657 & STARLINK-31693 Miss Distance (Miss Distance) Trend

    STARLINK-3657 & STARLINK-31693 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3657Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31693Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3657Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31693Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3657

    No nearby objects data