Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.302825E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T02:55:00+0800
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    1 Object 1

    AOE ID 21281
    NORAD ID 21281
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 56725
    NORAD ID 56725
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter DELTA 1 DEB ONEWEB-0721
    Time of Closest Approach 2026-10-21T20:54:39+0000
    Collision Probability (Pc) 2.302825E-6
    Conjunction Distance (km) 2.175 km
    Relative Speed (km/s) 14.487 km/s
    Conjunction Risk Parameters R (Radial): 2.132 | I (In-track): -0.029 | C (Cross-track): 0.43
    Collision Risk Index (CRI) 0.42
    X Position (km) 5140.89 5142.042
    Position Y (km) 5283.959 5285.756
    Position Z (km) 1639.535 1639.952
    Velocity X (km/s) 2.012 -1.413
    Velocity Y (km/s) 0.22 -0.835
    Velocity Z (km/s) -6.958 7.078

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB ONEWEB-0721
    Semimajor Axis (a) 7508.543 km 7553.412 km
    Eccentricity (e) 0.005734 0.000162
    Inclination (i) 100.0055° 86.6797°
    RAAN 221.9955° 45.5573°
    Perigee Argument 357.6931° 101.2051°
    Mean Anomaly (M) 155.1033° 258.9265°
    Apogee 1173.458 km 1176.498 km
    Perigee 1087.354 km 1174.052 km
    Orbit Epoch 2026-10-20T07:02:59+0000 2026-10-20T06:42:57+0000

    DELTA 1 DEB & ONEWEB-0721 Collision Probability (Pc) Trend

    DELTA 1 DEB & ONEWEB-0721 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & ONEWEB-0721 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & ONEWEB-0721 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0721Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0721Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data