Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    8.154593E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T07:34:10+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 2026-10-21T05:29:20+0000
    Collision Probability (Pc) 8.154593E-6
    Conjunction Distance (km) 1.395 km
    Relative Speed (km/s) 13.839 km/s
    Conjunction Risk Parameters R (Radial): -0.94 | I (In-track): 0.433 | C (Cross-track): -0.935
    Collision Risk Index (CRI) 0.53
    X Position (km) -3838.755 -3838.519
    Position Y (km) 5632.726 5634.071
    Position Z (km) -778.293 -778.007
    Velocity X (km/s) 0.231 -4.964
    Velocity Y (km/s) -0.877 -2.679
    Velocity Z (km/s) -7.569 5.13

    Orbital Parameters 国际轨道数据源

    Parameter SWARM B STARLINK-30454
    Semimajor Axis (a) 6856.322 km 6861.211 km
    Eccentricity (e) 0.000251 0.000115
    Inclination (i) 87.7389° 43.0010°
    RAAN 304.2260° 138.3102°
    Perigee Argument 85.6881° 262.8058°
    Mean Anomaly (M) 274.4655° 97.2662°
    Apogee 479.903 km 483.864 km
    Perigee 476.467 km 482.284 km
    Orbit Epoch 2026-10-20T12:58:17+0000 2026-10-19T23:42:52+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