Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.166021E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T09:58:24+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 63462
    NORAD ID 63462
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-33691
    Time of Closest Approach 2026-09-07T03:59:57+0000
    Collision Probability (Pc) 1.166021E-6
    Conjunction Distance (km) 2.645 km
    Relative Speed (km/s) 8.625 km/s
    Conjunction Risk Parameters R (Radial): 0.708 | I (In-track): -2.096 | C (Cross-track): -1.448
    Collision Risk Index (CRI) 0.36
    X Position (km) 5845.434 5843.721
    Position Y (km) -506.753 -505.56
    Position Z (km) 3547.843 3549.467
    Velocity X (km/s) -3.976 -1.483
    Velocity Y (km/s) -1.003 6.674
    Velocity Z (km/s) 6.424 3.384

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-33691
    Semimajor Axis (a) 6849.764 km 6861.251 km
    Eccentricity (e) 0.002810 0.000137
    Inclination (i) 98.6731° 43.0026°
    RAAN 356.9749° 328.6911°
    Perigee Argument 284.5865° 276.7987°
    Mean Anomaly (M) 75.2256° 47.5794°
    Apogee 490.875 km 484.053 km
    Perigee 452.379 km 482.175 km
    Orbit Epoch 2026-09-04T06:51:49+0000 2026-09-04T16:00:02+0000

    CZ-4 DEB & STARLINK-33691 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-33691 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-33691 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-33691 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33691Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33691Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data