Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.41269E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T15:10:11+0800
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    1 Object 1

    AOE ID 20885
    NORAD ID 20885
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65975
    NORAD ID 65975
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB SDA_1665
    Time of Closest Approach 2026-10-30T04:33:53+0000
    Collision Probability (Pc) 1.41269E-6
    Conjunction Distance (km) 2.855 km
    Relative Speed (km/s) 14.561 km/s
    Conjunction Risk Parameters R (Radial): -0.857 | I (In-track): -0.412 | C (Cross-track): -2.691
    Collision Risk Index (CRI) 0.38
    X Position (km) -1120.821 -1118.016
    Position Y (km) -180.014 -179.703
    Position Z (km) 7239.127 7238.701
    Velocity X (km/s) -1.892 -0.306
    Velocity Y (km/s) 7.109 -7.364
    Velocity Z (km/s) -0.079 -0.23

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB SDA_1665
    Semimajor Axis (a) 7302.896 km 7334.739 km
    Eccentricity (e) 0.006620 0.000075
    Inclination (i) 98.8607° 81.2988°
    RAAN 282.6098° 89.4386°
    Perigee Argument 325.7644° 106.0679°
    Mean Anomaly (M) 209.9766° 254.0559°
    Apogee 973.102 km 957.153 km
    Perigee 876.416 km 956.051 km
    Orbit Epoch 2026-10-27T16:33:28+0000 2026-10-27T22:15:37+0000

    CZ-4 DEB & SDA_1665 Collision Probability (Pc) Trend

    CZ-4 DEB & SDA_1665 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & SDA_1665 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & SDA_1665 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SDA_1665Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SDA_1665Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data