Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.638449E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T16:30:20+0800
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    1 Object 1

    AOE ID 26121
    NORAD ID 26121
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 48468
    NORAD ID 48468
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-2685
    Time of Closest Approach 2026-10-28T13:48:45+0000
    Collision Probability (Pc) 2.638449E-6
    Conjunction Distance (km) 2.016 km
    Relative Speed (km/s) 13.454 km/s
    Conjunction Risk Parameters R (Radial): -1.893 | I (In-track): 0.326 | C (Cross-track): 0.611
    Collision Risk Index (CRI) 0.43
    X Position (km) -1397.11 -1396.348
    Position Y (km) -4107.921 -4107.285
    Position Z (km) 5265.364 5263.61
    Velocity X (km/s) -3.571 7.461
    Velocity Y (km/s) -4.858 -0.462
    Velocity Z (km/s) -4.712 1.611

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-2685
    Semimajor Axis (a) 6844.078 km 6829.885 km
    Eccentricity (e) 0.002819 0.000473
    Inclination (i) 98.6795° 53.1561°
    RAAN 59.7410° 188.5621°
    Perigee Argument 100.0540° 123.6174°
    Mean Anomaly (M) 260.3882° 236.5282°
    Apogee 485.236 km 454.979 km
    Perigee 446.646 km 448.517 km
    Orbit Epoch 2026-10-27T21:35:37+0000 2026-10-27T23:27:15+0000

    CZ-4 DEB & STARLINK-2685 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-2685 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-2685 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-2685 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-2685Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-2685Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data