Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.327654E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T01:49:40+0800
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    1 Object 1

    AOE ID 29043
    NORAD ID 29043
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 63347
    NORAD ID 63347
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter CZ-4 DEB YUNYAO-1 46
    Time of Closest Approach 2026-09-17T17:21:45+0000
    Collision Probability (Pc) 2.327654E-6
    Conjunction Distance (km) 2.177 km
    Relative Speed (km/s) 14.781 km/s
    Conjunction Risk Parameters R (Radial): -0.402 | I (In-track): -0.484 | C (Cross-track): -2.083
    Collision Risk Index (CRI) 0.42
    X Position (km) -154.227 -152.099
    Position Y (km) 4111.429 4111.753
    Position Z (km) -5565.7 -5566.018
    Velocity X (km/s) 1.903 1.469
    Velocity Y (km/s) -5.876 6.003
    Velocity Z (km/s) -4.397 4.387

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB YUNYAO-1 46
    Semimajor Axis (a) 6913.823 km 6910.169 km
    Eccentricity (e) 0.000209 0.001127
    Inclination (i) 97.5725° 97.6152°
    RAAN 279.1328° 79.2616°
    Perigee Argument 135.8489° 188.3855°
    Mean Anomaly (M) 224.2908° 171.7188°
    Apogee 537.135 km 539.820 km
    Perigee 534.237 km 524.244 km
    Orbit Epoch 2026-09-14T07:13:40+0000 2026-09-15T06:48:39+0000

    CZ-4 DEB & YUNYAO-1 46 Collision Probability (Pc) Trend

    CZ-4 DEB & YUNYAO-1 46 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & YUNYAO-1 46 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & YUNYAO-1 46 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNYAO-1 46Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YUNYAO-1 46Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data