Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.031142E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:00:09+0800
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    1 Object 1

    AOE ID 52626
    NORAD ID 52626
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69969
    NORAD ID 69969
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3990 STARLINK-37921
    Time of Closest Approach 2026-09-06T08:15:39+0000
    Collision Probability (Pc) 2.031142E-6
    Conjunction Distance (km) 2.133 km
    Relative Speed (km/s) 10.981 km/s
    Conjunction Risk Parameters R (Radial): 1.839 | I (In-track): -0.746 | C (Cross-track): -0.781
    Collision Risk Index (CRI) 0.41
    X Position (km) 5739.421 5741.216
    Position Y (km) 1397.606 1396.931
    Position Z (km) -3453.592 -3454.524
    Velocity X (km/s) -3.943 1.436
    Velocity Y (km/s) 4.494 5.803
    Velocity Z (km/s) -4.741 4.741

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3990 STARLINK-37921
    Semimajor Axis (a) 6837.877 km 6840.966 km
    Eccentricity (e) 0.000146 0.000122
    Inclination (i) 53.1588° 53.1598°
    RAAN 179.4576° 51.0252°
    Perigee Argument 58.1642° 80.0973°
    Mean Anomaly (M) 301.9503° 143.2713°
    Apogee 460.741 km 463.664 km
    Perigee 458.739 km 461.994 km
    Orbit Epoch 2026-09-03T19:56:46+0000 2026-09-03T22:00:02+0000

    STARLINK-3990 & STARLINK-37921 Collision Probability (Pc) Trend

    STARLINK-3990 & STARLINK-37921 Collision Probability (Pc) TrendNot Available

    STARLINK-3990 & STARLINK-37921 Miss Distance (Miss Distance) Trend

    STARLINK-3990 & STARLINK-37921 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3990Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37921Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3990Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37921Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3990

    No nearby objects data