Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.679287E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-09T07:18:55+0800
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    1 Object 1

    AOE ID 21499
    NORAD ID 21499
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 54664
    NORAD ID 54664
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter DELTA 1 DEB ONEWEB-0600
    Time of Closest Approach 2026-09-09T01:01:29+0000
    Collision Probability (Pc) 1.679287E-6
    Conjunction Distance (km) 2.517 km
    Relative Speed (km/s) 14.012 km/s
    Conjunction Risk Parameters R (Radial): -1.478 | I (In-track): -0.495 | C (Cross-track): 1.976
    Collision Risk Index (CRI) 0.4
    X Position (km) 1245.474 1246.841
    Position Y (km) 1739.405 1738.059
    Position Z (km) -7254.674 -7256.303
    Velocity X (km/s) 6.703 -4.774
    Velocity Y (km/s) 2.048 -5.062
    Velocity Z (km/s) 1.713 -2.034

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB ONEWEB-0600
    Semimajor Axis (a) 7482.777 km 7555.890 km
    Eccentricity (e) 0.013604 0.000228
    Inclination (i) 99.6031° 87.9258°
    RAAN 18.6727° 227.4150°
    Perigee Argument 61.9494° 82.2223°
    Mean Anomaly (M) 327.8404° 277.9170°
    Apogee 1206.437 km 1179.480 km
    Perigee 1002.843 km 1176.026 km
    Orbit Epoch 2026-09-08T07:38:44+0000 2026-09-08T09:12:42+0000

    DELTA 1 DEB & ONEWEB-0600 Collision Probability (Pc) Trend

    DELTA 1 DEB & ONEWEB-0600 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & ONEWEB-0600 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & ONEWEB-0600 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0600Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0600Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data