Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.670211E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T22:14:19+0800
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    1 Object 1

    AOE ID 21297
    NORAD ID 21297
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 54117
    NORAD ID 54117
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter DELTA 1 DEB ONEWEB-0499
    Time of Closest Approach 2026-09-16T11:16:51+0000
    Collision Probability (Pc) 2.670211E-4
    Conjunction Distance (km) 0.436 km
    Relative Speed (km/s) 14.135 km/s
    Conjunction Risk Parameters R (Radial): -0.105 | I (In-track): 0.098 | C (Cross-track): 0.412
    Collision Risk Index (CRI) 0.84
    X Position (km) -959.629 -959.197
    Position Y (km) 2275.328 2275.341
    Position Z (km) -7158.969 -7158.911
    Velocity X (km/s) 1.16 1.897
    Velocity Y (km/s) 6.835 -6.587
    Velocity Z (km/s) 2.018 -2.349

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB ONEWEB-0499
    Semimajor Axis (a) 7512.396 km 7563.908 km
    Eccentricity (e) 0.007092 0.000204
    Inclination (i) 99.6798° 87.9112°
    RAAN 81.8433° 287.0983°
    Perigee Argument 109.3249° 87.9171°
    Mean Anomaly (M) 55.9625° 272.2195°
    Apogee 1187.537 km 1187.316 km
    Perigee 1080.981 km 1184.226 km
    Orbit Epoch 2026-09-15T00:27:25+0000 2026-09-14T21:37:14+0000

    DELTA 1 DEB & ONEWEB-0499 Collision Probability (Pc) Trend

    DELTA 1 DEB & ONEWEB-0499 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & ONEWEB-0499 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & ONEWEB-0499 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0499Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0499Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data