Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.295456E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:35:34+0800
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    1 Object 1

    AOE ID 38745
    NORAD ID 38745
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 39012
    NORAD ID 39012
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter EXPRESS MD2 YAOGAN 16B
    Time of Closest Approach 2026-10-29T13:54:47+0000
    Collision Probability (Pc) 8.295456E-7
    Conjunction Distance (km) 2.704 km
    Relative Speed (km/s) 4.969 km/s
    Conjunction Risk Parameters R (Radial): 0.532 | I (In-track): -2.565 | C (Cross-track): -0.664
    Collision Risk Index (CRI) 0.33
    X Position (km) 234.936 232.727
    Position Y (km) 4871.983 4872.809
    Position Z (km) 5658.055 5656.733
    Velocity X (km/s) -7.287 -4.803
    Velocity Y (km/s) 0.493 4.465
    Velocity Z (km/s) -1.556 -3.211

    Orbital Parameters 国际轨道数据源

    Parameter EXPRESS MD2 YAOGAN 16B
    Semimajor Axis (a) 7827.395 km 7466.908 km
    Eccentricity (e) 0.152341 0.044618
    Inclination (i) 49.8235° 63.3522°
    RAAN 353.7184° 308.6922°
    Perigee Argument 172.3074° 27.9893°
    Mean Anomaly (M) 190.4330° 334.4371°
    Apogee 2641.689 km 1421.932 km
    Perigee 256.827 km 755.610 km
    Orbit Epoch 2026-10-27T03:55:36+0000 2026-10-27T07:50:08+0000

    EXPRESS MD2 & YAOGAN 16B Collision Probability (Pc) Trend

    EXPRESS MD2 & YAOGAN 16B Collision Probability (Pc) TrendNot Available

    EXPRESS MD2 & YAOGAN 16B Miss Distance (Miss Distance) Trend

    EXPRESS MD2 & YAOGAN 16B Miss Distance (Miss Distance) TrendNot Available

    EXPRESS MD2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAOGAN 16BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    EXPRESS MD2Collision Probability Trend

    Object 1 Probability TrendNot Available

    YAOGAN 16BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with EXPRESS MD2

    No nearby objects data