Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.157798E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T22:36:01+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 57915
    NORAD ID 57915
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SWARM B STARLINK-30454
    Time of Closest Approach 2026-09-14T07:31:51+0000
    Collision Probability (Pc) 1.157798E-6
    Conjunction Distance (km) 2.396 km
    Relative Speed (km/s) 6.39 km/s
    Conjunction Risk Parameters R (Radial): 2.219 | I (In-track): -0.822 | C (Cross-track): -0.373
    Collision Risk Index (CRI) 0.36
    X Position (km) -4450.1 -4451.039
    Position Y (km) 4551.931 4553.475
    Position Z (km) 2546.653 2548.225
    Velocity X (km/s) -2.218 -5.52
    Velocity Y (km/s) 1.807 -2.946
    Velocity Z (km/s) -7.07 -4.362

    Orbital Parameters 国际轨道数据源

    Parameter SWARM B STARLINK-30454
    Semimajor Axis (a) 6856.871 km 6861.214 km
    Eccentricity (e) 0.000346 0.000146
    Inclination (i) 87.7449° 43.0056°
    RAAN 316.1785° 356.9185°
    Perigee Argument 91.8938° 265.6020°
    Mean Anomaly (M) 268.2708° 94.4665°
    Apogee 481.108 km 484.077 km
    Perigee 476.360 km 482.077 km
    Orbit Epoch 2026-09-11T06:35:21+0000 2026-09-11T06:42:14+0000

    SWARM B & STARLINK-30454 Collision Probability (Pc) Trend

    SWARM B & STARLINK-30454 Collision Probability (Pc) TrendNot Available

    SWARM B & STARLINK-30454 Miss Distance (Miss Distance) Trend

    SWARM B & STARLINK-30454 Miss Distance (Miss Distance) TrendNot Available

    SWARM BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30454Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SWARM BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30454Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SWARM B

    No nearby objects data