Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.598312E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:33:37+0800
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    1 Object 1

    AOE ID 25042
    NORAD ID 25042
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 30432
    NORAD ID 30432
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter IRIDIUM 39 FENGYUN 1C DEB
    Time of Closest Approach 2026-09-18T04:41:36+0000
    Collision Probability (Pc) 1.598312E-6
    Conjunction Distance (km) 2.638 km
    Relative Speed (km/s) 14.734 km/s
    Conjunction Risk Parameters R (Radial): 2.466 | I (In-track): -0.15 | C (Cross-track): 0.924
    Collision Risk Index (CRI) 0.39
    X Position (km) -1713.006 -1713.509
    Position Y (km) -892.381 -893.617
    Position Z (km) -6835.881 -6838.156
    Velocity X (km/s) 7.013 -7.249
    Velocity Y (km/s) 1.701 0.988
    Velocity Z (km/s) -1.989 1.636

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 39 FENGYUN 1C DEB
    Semimajor Axis (a) 7104.298 km 7131.352 km
    Eccentricity (e) 0.001623 0.008027
    Inclination (i) 86.3951° 98.8183°
    RAAN 15.7411° 171.5173°
    Perigee Argument 218.4081° 235.3353°
    Mean Anomaly (M) 141.5969° 124.0251°
    Apogee 737.691 km 810.462 km
    Perigee 714.631 km 695.968 km
    Orbit Epoch 2026-09-15T14:14:08+0000 2026-09-15T13:45:01+0000

    IRIDIUM 39 & FENGYUN 1C DEB Collision Probability (Pc) Trend

    IRIDIUM 39 & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    IRIDIUM 39 & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    IRIDIUM 39 & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 39Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 39Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 39

    No nearby objects data