Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.820482E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T05:46:24+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 37422
    NORAD ID 37422
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter IRIDIUM 39 FENGYUN 1C DEB
    Time of Closest Approach 2026-09-12T16:51:49+0000
    Collision Probability (Pc) 6.820482E-7
    Conjunction Distance (km) 2.344 km
    Relative Speed (km/s) 2.216 km/s
    Conjunction Risk Parameters R (Radial): -1.057 | I (In-track): -2.069 | C (Cross-track): -0.3
    Collision Risk Index (CRI) 0.32
    X Position (km) 4895.466 4896.025
    Position Y (km) 1813.381 1813.718
    Position Z (km) 4829.764 4827.513
    Velocity X (km/s) -4.974 -4.108
    Velocity Y (km/s) -1.159 -3.196
    Velocity Z (km/s) 5.466 5.378

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 39 FENGYUN 1C DEB
    Semimajor Axis (a) 7104.311 km 7107.159 km
    Eccentricity (e) 0.001577 0.002446
    Inclination (i) 86.3944° 98.8601°
    RAAN 17.8731° 24.8432°
    Perigee Argument 236.6878° 298.7511°
    Mean Anomaly (M) 123.2816° 61.1224°
    Apogee 737.381 km 746.405 km
    Perigee 714.967 km 711.639 km
    Orbit Epoch 2026-09-10T14:58:24+0000 2026-09-09T02:29:07+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