Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.498799E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T21:02:39+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 58236
    NORAD ID 58236
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SWARM B STARLINK-30853
    Time of Closest Approach 2026-09-07T15:19:47+0000
    Collision Probability (Pc) 8.498799E-7
    Conjunction Distance (km) 2.921 km
    Relative Speed (km/s) 6.229 km/s
    Conjunction Risk Parameters R (Radial): -2.371 | I (In-track): 1.558 | C (Cross-track): -0.695
    Collision Risk Index (CRI) 0.34
    X Position (km) -4708.928 -4709.675
    Position Y (km) 4466.455 4468.213
    Position Z (km) 2211.967 2214.177
    Velocity X (km/s) -2.01 -5.193
    Velocity Y (km/s) 1.47 -3.195
    Velocity Z (km/s) -7.209 -4.582

    Orbital Parameters 国际轨道数据源

    Parameter SWARM B STARLINK-30853
    Semimajor Axis (a) 6856.956 km 6861.202 km
    Eccentricity (e) 0.000335 0.000198
    Inclination (i) 87.7454° 43.0052°
    RAAN 318.0076° 352.9038°
    Perigee Argument 94.2439° 270.0403°
    Mean Anomaly (M) 265.9193° 90.0222°
    Apogee 481.114 km 484.425 km
    Perigee 476.524 km 481.705 km
    Orbit Epoch 2026-09-05T06:04:52+0000 2026-09-04T23:53:53+0000

    SWARM B & STARLINK-30853 Collision Probability (Pc) Trend

    SWARM B & STARLINK-30853 Collision Probability (Pc) TrendNot Available

    SWARM B & STARLINK-30853 Miss Distance (Miss Distance) Trend

    SWARM B & STARLINK-30853 Miss Distance (Miss Distance) TrendNot Available

    SWARM BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30853Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SWARM BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30853Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SWARM B

    No nearby objects data