Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.865572E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T05:47:10+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 25077
    NORAD ID 25077
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 33723
    NORAD ID 33723
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter IRIDIUM 42 FENGYUN 1C DEB
    Time of Closest Approach 2026-09-10T23:10:29+0000
    Collision Probability (Pc) 1.865572E-6
    Conjunction Distance (km) 2.038 km
    Relative Speed (km/s) 8.044 km/s
    Conjunction Risk Parameters R (Radial): 0.779 | I (In-track): -1.587 | C (Cross-track): -1.013
    Collision Risk Index (CRI) 0.4
    X Position (km) 1277.792 1276.176
    Position Y (km) 845.694 845.226
    Position Z (km) -6990.988 -6992.137
    Velocity X (km/s) 4.592 7.151
    Velocity Y (km/s) 5.667 -1.946
    Velocity Z (km/s) 1.526 1.077

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 42 FENGYUN 1C DEB
    Semimajor Axis (a) 7147.473 km 7219.961 km
    Eccentricity (e) 0.000295 0.009664
    Inclination (i) 86.3930° 99.1481°
    RAAN 50.4222° 344.6269°
    Perigee Argument 88.7731° 287.5601°
    Mean Anomaly (M) 271.3805° 137.0280°
    Apogee 771.447 km 911.602 km
    Perigee 767.225 km 772.046 km
    Orbit Epoch 2026-09-10T11:50:15+0000 2026-09-09T12:13:45+0000

    IRIDIUM 42 & FENGYUN 1C DEB Collision Probability (Pc) Trend

    IRIDIUM 42 & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    IRIDIUM 42 & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    IRIDIUM 42 & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 42Miss 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 42Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 42

    No nearby objects data