Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.166474E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T11:56:31+0800
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    1 Object 1

    AOE ID 52704
    NORAD ID 52704
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58770
    NORAD ID 58770
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3999 STARLINK-31143
    Time of Closest Approach 2026-09-13T04:56:53+0000
    Collision Probability (Pc) 1.166474E-6
    Conjunction Distance (km) 2.99 km
    Relative Speed (km/s) 11.532 km/s
    Conjunction Risk Parameters R (Radial): 2.957 | I (In-track): 0.292 | C (Cross-track): -0.334
    Collision Risk Index (CRI) 0.36
    X Position (km) 5848.969 5851.344
    Position Y (km) 2187.957 2189.319
    Position Z (km) 2777.361 2778.563
    Velocity X (km/s) -3.958 0.445
    Velocity Y (km/s) 3.871 5.518
    Velocity Z (km/s) 5.265 -5.264

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3999 STARLINK-31143
    Semimajor Axis (a) 6837.892 km 6840.864 km
    Eccentricity (e) 0.000123 0.000124
    Inclination (i) 53.1613° 53.1563°
    RAAN 13.2524° 231.9996°
    Perigee Argument 62.2740° 99.3001°
    Mean Anomaly (M) 297.8387° 260.8141°
    Apogee 460.594 km 463.574 km
    Perigee 458.916 km 461.880 km
    Orbit Epoch 2026-09-10T14:19:35+0000 2026-09-10T15:20:00+0000

    STARLINK-3999 & STARLINK-31143 Collision Probability (Pc) Trend

    STARLINK-3999 & STARLINK-31143 Collision Probability (Pc) TrendNot Available

    STARLINK-3999 & STARLINK-31143 Miss Distance (Miss Distance) Trend

    STARLINK-3999 & STARLINK-31143 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3999Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31143Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3999Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31143Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3999

    No nearby objects data