Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.824637E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T05:48:03+0800
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    1 Object 1

    AOE ID 21351
    NORAD ID 21351
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 55835
    NORAD ID 55835
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter DELTA 1 DEB ONEWEB-0720
    Time of Closest Approach 2026-09-11T21:54:16+0000
    Collision Probability (Pc) 4.824637E-6
    Conjunction Distance (km) 1.533 km
    Relative Speed (km/s) 10.078 km/s
    Conjunction Risk Parameters R (Radial): 1.228 | I (In-track): 0.657 | C (Cross-track): 0.642
    Collision Risk Index (CRI) 0.49
    X Position (km) -656.996 -656.302
    Position Y (km) 1162.063 1161.824
    Position Z (km) -7453.021 -7454.366
    Velocity X (km/s) 6.937 2.126
    Velocity Y (km/s) 1.994 -6.813
    Velocity Z (km/s) -0.32 -1.249

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB ONEWEB-0720
    Semimajor Axis (a) 7518.662 km 7563.908 km
    Eccentricity (e) 0.006616 0.000198
    Inclination (i) 99.8581° 87.9115°
    RAAN 15.0415° 287.7716°
    Perigee Argument 112.1363° 84.3483°
    Mean Anomaly (M) 271.0491° 275.7875°
    Apogee 1190.266 km 1187.270 km
    Perigee 1090.784 km 1184.272 km
    Orbit Epoch 2026-09-11T08:03:35+0000 2026-09-11T13:18:45+0000

    DELTA 1 DEB & ONEWEB-0720 Collision Probability (Pc) Trend

    DELTA 1 DEB & ONEWEB-0720 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & ONEWEB-0720 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & ONEWEB-0720 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0720Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0720Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data