Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.314817E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T21:57:36+0800
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    1 Object 1

    AOE ID 42670
    NORAD ID 42670
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59474
    NORAD ID 59474
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C DEB STARLINK-31581
    Time of Closest Approach 2026-10-21T11:01:50+0000
    Collision Probability (Pc) 1.314817E-6
    Conjunction Distance (km) 3 km
    Relative Speed (km/s) 14.329 km/s
    Conjunction Risk Parameters R (Radial): 2.766 | I (In-track): 0.393 | C (Cross-track): 1.096
    Collision Risk Index (CRI) 0.37
    X Position (km) -6785.401 -6787.979
    Position Y (km) -653.689 -654.977
    Position Z (km) -757.874 -758.708
    Velocity X (km/s) 0.69 -0.026
    Velocity Y (km/s) 1.066 -5.638
    Velocity Z (km/s) -7.51 5.134

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C DEB STARLINK-31581
    Semimajor Axis (a) 6840.371 km 6861.204 km
    Eccentricity (e) 0.005475 0.000120
    Inclination (i) 97.4640° 43.0007°
    RAAN 3.7975° 205.6580°
    Perigee Argument 81.8572° 259.4310°
    Mean Anomaly (M) 278.8876° 100.6406°
    Apogee 499.686 km 483.892 km
    Perigee 424.782 km 482.242 km
    Orbit Epoch 2026-10-18T22:45:30+0000 2026-10-19T02:34:38+0000

    CZ-4C DEB & STARLINK-31581 Collision Probability (Pc) Trend

    CZ-4C DEB & STARLINK-31581 Collision Probability (Pc) TrendNot Available

    CZ-4C DEB & STARLINK-31581 Miss Distance (Miss Distance) Trend

    CZ-4C DEB & STARLINK-31581 Miss Distance (Miss Distance) TrendNot Available

    CZ-4C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31581Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31581Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C DEB

    No nearby objects data