Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.28276E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T14:14:59+0800
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    1 Object 1

    AOE ID 31752
    NORAD ID 31752
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 65579
    NORAD ID 65579
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB PRAETORIAN SDA_616
    Time of Closest Approach 2026-09-07T16:04:42+0000
    Collision Probability (Pc) 7.28276E-7
    Conjunction Distance (km) 2.736 km
    Relative Speed (km/s) 4.013 km/s
    Conjunction Risk Parameters R (Radial): 2.189 | I (In-track): 1.61 | C (Cross-track): 0.321
    Collision Risk Index (CRI) 0.32
    X Position (km) 2532.635 2532.609
    Position Y (km) -3268.356 -3268.522
    Position Z (km) 6047.29 6044.559
    Velocity X (km/s) -5.09 -2.033
    Velocity Y (km/s) 3.257 5.849
    Velocity Z (km/s) 4.193 4.011

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB PRAETORIAN SDA_616
    Semimajor Axis (a) 7290.826 km 7330.433 km
    Eccentricity (e) 0.035095 0.000528
    Inclination (i) 98.9587° 81.3054°
    RAAN 316.0062° 297.4618°
    Perigee Argument 330.1223° 357.9506°
    Mean Anomaly (M) 28.0306° 2.1628°
    Apogee 1168.559 km 956.166 km
    Perigee 656.819 km 948.426 km
    Orbit Epoch 2026-09-02T10:07:05+0000 2026-09-04T20:06:13+0000

    FENGYUN 1C DEB & PRAETORIAN SDA_616 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & PRAETORIAN SDA_616 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & PRAETORIAN SDA_616 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & PRAETORIAN SDA_616 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PRAETORIAN SDA_616Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    PRAETORIAN SDA_616Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data