Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.283918E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T20:50:10+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 57526
    NORAD ID 57526
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SWARM B STARLINK-30257
    Time of Closest Approach 2026-11-01T17:01:11+0000
    Collision Probability (Pc) 3.283918E-6
    Conjunction Distance (km) 1.865 km
    Relative Speed (km/s) 13.729 km/s
    Conjunction Risk Parameters R (Radial): 1.51 | I (In-track): -0.463 | C (Cross-track): 0.992
    Collision Risk Index (CRI) 0.45
    X Position (km) 3303.947 3303.743
    Position Y (km) -5743.966 -5745.638
    Position Z (km) -1779.729 -1780.529
    Velocity X (km/s) 1.251 4.361
    Velocity Y (km/s) -1.55 3.994
    Velocity Z (km/s) 7.357 -4.81

    Orbital Parameters 国际轨道数据源

    Parameter SWARM B STARLINK-30257
    Semimajor Axis (a) 6856.192 km 6861.196 km
    Eccentricity (e) 0.000243 0.000092
    Inclination (i) 87.7378° 42.9978°
    RAAN 301.3530° 121.0828°
    Perigee Argument 91.0252° 276.4470°
    Mean Anomaly (M) 269.1276° 83.6277°
    Apogee 479.719 km 483.693 km
    Perigee 476.391 km 482.425 km
    Orbit Epoch 2026-10-29T23:07:30+0000 2026-10-29T12:48:47+0000

    SWARM B & STARLINK-30257 Collision Probability (Pc) Trend

    SWARM B & STARLINK-30257 Collision Probability (Pc) TrendNot Available

    SWARM B & STARLINK-30257 Miss Distance (Miss Distance) Trend

    SWARM B & STARLINK-30257 Miss Distance (Miss Distance) TrendNot Available

    SWARM BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30257Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SWARM BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30257Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SWARM B

    No nearby objects data