Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    6.839286E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:09:17+0800
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    1 Object 1

    AOE ID 21471
    NORAD ID 21471
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 51655
    NORAD ID 51655
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter DELTA 1 DEB ONEWEB-0475
    Time of Closest Approach 2026-09-18T07:10:10+0000
    Collision Probability (Pc) 6.839286E-6
    Conjunction Distance (km) 1.332 km
    Relative Speed (km/s) 8.547 km/s
    Conjunction Risk Parameters R (Radial): -0.403 | I (In-track): 1.034 | C (Cross-track): 0.737
    Collision Risk Index (CRI) 0.52
    X Position (km) -1484.939 -1483.727
    Position Y (km) 54.767 55.29
    Position Z (km) -7434.489 -7434.316
    Velocity X (km/s) 3.504 6.923
    Velocity Y (km/s) 6.206 -1.601
    Velocity Z (km/s) -0.758 -1.394

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB ONEWEB-0475
    Semimajor Axis (a) 7422.011 km 7571.853 km
    Eccentricity (e) 0.024922 0.000243
    Inclination (i) 99.9647° 87.9203°
    RAAN 56.5133° 347.9961°
    Perigee Argument 125.7366° 92.0982°
    Mean Anomaly (M) 267.0640° 268.0428°
    Apogee 1228.848 km 1195.556 km
    Perigee 858.900 km 1191.876 km
    Orbit Epoch 2026-09-15T09:03:58+0000 2026-09-15T04:57:40+0000

    DELTA 1 DEB & ONEWEB-0475 Collision Probability (Pc) Trend

    DELTA 1 DEB & ONEWEB-0475 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & ONEWEB-0475 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & ONEWEB-0475 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0475Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0475Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data