Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    6.600954E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T13:33:23+0800
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    1 Object 1

    AOE ID 29889
    NORAD ID 29889
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65576
    NORAD ID 65576
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB PRAETORIAN SDA_613
    Time of Closest Approach 2026-10-22T00:00:18+0000
    Collision Probability (Pc) 6.600954E-5
    Conjunction Distance (km) 0.762 km
    Relative Speed (km/s) 14.688 km/s
    Conjunction Risk Parameters R (Radial): -0.745 | I (In-track): -0.004 | C (Cross-track): -0.155
    Collision Risk Index (CRI) 0.71
    X Position (km) 1576.851 1576.542
    Position Y (km) 1587.658 1587.536
    Position Z (km) 6976.156 6975.47
    Velocity X (km/s) -1.32 1.704
    Velocity Y (km/s) -6.954 6.903
    Velocity Z (km/s) 1.86 -1.956

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB PRAETORIAN SDA_613
    Semimajor Axis (a) 7224.169 km 7332.197 km
    Eccentricity (e) 0.015268 0.000504
    Inclination (i) 99.5174° 81.2978°
    RAAN 74.9881° 254.7437°
    Perigee Argument 251.0588° 202.9415°
    Mean Anomaly (M) 136.2737° 157.1517°
    Apogee 956.331 km 957.757 km
    Perigee 735.733 km 950.363 km
    Orbit Epoch 2026-10-20T08:43:02+0000 2026-10-20T21:26:51+0000

    FENGYUN 1C DEB & PRAETORIAN SDA_613 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & PRAETORIAN SDA_613 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & PRAETORIAN SDA_613 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & PRAETORIAN SDA_613 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PRAETORIAN SDA_613Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    PRAETORIAN SDA_613Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data