Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.573757E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T20:37:22+0800
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    1 Object 1

    AOE ID 20912
    NORAD ID 20912
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 43255
    NORAD ID 43255
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB IRIDIUM 148
    Time of Closest Approach 2026-10-24T23:54:28+0000
    Collision Probability (Pc) 1.573757E-5
    Conjunction Distance (km) 1.024 km
    Relative Speed (km/s) 7.681 km/s
    Conjunction Risk Parameters R (Radial): 0.581 | I (In-track): 0.725 | C (Cross-track): -0.432
    Collision Risk Index (CRI) 0.59
    X Position (km) -440.216 -440.211
    Position Y (km) -1447.791 -1447.084
    Position Z (km) 6984.45 6985.19
    Velocity X (km/s) -3.506 4.151
    Velocity Y (km/s) 6.491 6.021
    Velocity Z (km/s) 1.119 1.506

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB IRIDIUM 148
    Semimajor Axis (a) 7145.833 km 7155.806 km
    Eccentricity (e) 0.001187 0.000214
    Inclination (i) 98.5499° 86.3970°
    RAAN 295.6197° 236.5488°
    Perigee Argument 245.9252° 83.4996°
    Mean Anomaly (M) 240.0301° 276.6443°
    Apogee 776.176 km 779.202 km
    Perigee 759.216 km 776.136 km
    Orbit Epoch 2026-10-23T13:01:39+0000 2026-10-24T01:46:35+0000

    CZ-4 DEB & IRIDIUM 148 Collision Probability (Pc) Trend

    CZ-4 DEB & IRIDIUM 148 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & IRIDIUM 148 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & IRIDIUM 148 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 148Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 148Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data