Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.137942E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T07:00:28+0800
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    1 Object 1

    Name SWARM B
    AOE ID 39451
    NORAD ID 39451
    Object Type PAYLOAD
    Country
    ESA ESA
    VS

    2 Object 2

    AOE ID 59361
    NORAD ID 59361
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SWARM B STARLINK-31560
    Time of Closest Approach 2026-09-13T05:50:09+0000
    Collision Probability (Pc) 1.137942E-6
    Conjunction Distance (km) 2.483 km
    Relative Speed (km/s) 6.919 km/s
    Conjunction Risk Parameters R (Radial): 2.483 | I (In-track): -0.026 | C (Cross-track): 0.012
    Collision Risk Index (CRI) 0.36
    X Position (km) 4383.204 4384.791
    Position Y (km) -4113.539 -4115.047
    Position Z (km) 3293.795 3294.965
    Velocity X (km/s) -2.444 2.875
    Velocity Y (km/s) 2.763 6.026
    Velocity Z (km/s) 6.677 3.689

    Orbital Parameters 国际轨道数据源

    Parameter SWARM B STARLINK-31560
    Semimajor Axis (a) 6856.866 km 6861.187 km
    Eccentricity (e) 0.000346 0.000115
    Inclination (i) 87.7447° 43.0009°
    RAAN 316.0791° 292.6707°
    Perigee Argument 91.6888° 281.7907°
    Mean Anomaly (M) 268.4757° 78.2816°
    Apogee 481.102 km 483.836 km
    Perigee 476.356 km 482.264 km
    Orbit Epoch 2026-09-11T14:26:34+0000 2026-09-11T03:25:27+0000

    SWARM B & STARLINK-31560 Collision Probability (Pc) Trend

    SWARM B & STARLINK-31560 Collision Probability (Pc) TrendNot Available

    SWARM B & STARLINK-31560 Miss Distance (Miss Distance) Trend

    SWARM B & STARLINK-31560 Miss Distance (Miss Distance) TrendNot Available

    SWARM BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31560Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SWARM BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31560Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SWARM B

    No nearby objects data