Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.519736E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T08:27:33+0800
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    1 Object 1

    AOE ID 31419
    NORAD ID 31419
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 56727
    NORAD ID 56727
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB IRIDIUM 177
    Time of Closest Approach 2026-09-17T06:32:00+0000
    Collision Probability (Pc) 1.519736E-6
    Conjunction Distance (km) 2.747 km
    Relative Speed (km/s) 15.042 km/s
    Conjunction Risk Parameters R (Radial): -2.517 | I (In-track): 0.061 | C (Cross-track): -1.096
    Collision Risk Index (CRI) 0.39
    X Position (km) -1757.502 -1759.194
    Position Y (km) 5492.071 5493.79
    Position Z (km) -4006.065 -4007.379
    Velocity X (km/s) 0.055 0.725
    Velocity Y (km/s) 4.424 -4.259
    Velocity Z (km/s) 6.098 -6.166

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB IRIDIUM 177
    Semimajor Axis (a) 7020.005 km 7016.425 km
    Eccentricity (e) 0.003852 0.000259
    Inclination (i) 98.7833° 86.1921°
    RAAN 98.4203° 285.9563°
    Perigee Argument 54.1824° 91.7433°
    Mean Anomaly (M) 306.2953° 268.4083°
    Apogee 668.911 km 640.106 km
    Perigee 614.825 km 636.470 km
    Orbit Epoch 2026-09-14T08:44:06+0000 2026-09-15T11:17:37+0000

    FENGYUN 1C DEB & IRIDIUM 177 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & IRIDIUM 177 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & IRIDIUM 177 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & IRIDIUM 177 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 177Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 177Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data