Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.279083E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:25:20+0800
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    1 Object 1

    AOE ID 40690
    NORAD ID 40690
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65575
    NORAD ID 65575
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB PRAETORIAN SDA_612
    Time of Closest Approach 2026-10-20T08:40:37+0000
    Collision Probability (Pc) 1.279083E-6
    Conjunction Distance (km) 2.644 km
    Relative Speed (km/s) 10.119 km/s
    Conjunction Risk Parameters R (Radial): -0.932 | I (In-track): 1.797 | C (Cross-track): 1.7
    Collision Risk Index (CRI) 0.37
    X Position (km) -711.701 -710.51
    Position Y (km) 1520.857 1518.522
    Position Z (km) -7133.774 -7133.433
    Velocity X (km/s) 6.875 -2.136
    Velocity Y (km/s) -2.335 -6.936
    Velocity Z (km/s) -1.124 -1.269

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB PRAETORIAN SDA_612
    Semimajor Axis (a) 7285.832 km 7324.196 km
    Eccentricity (e) 0.009265 0.000856
    Inclination (i) 99.3944° 81.3000°
    RAAN 338.7703° 254.8709°
    Perigee Argument 25.5556° 207.5213°
    Mean Anomaly (M) 335.0143° 152.5492°
    Apogee 975.201 km 952.325 km
    Perigee 840.189 km 939.793 km
    Orbit Epoch 2026-10-19T09:04:07+0000 2026-10-19T21:01:24+0000

    FENGYUN 1C DEB & PRAETORIAN SDA_612 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & PRAETORIAN SDA_612 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & PRAETORIAN SDA_612 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & PRAETORIAN SDA_612 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PRAETORIAN SDA_612Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    PRAETORIAN SDA_612Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data