Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.932092E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T22:31:50+0800
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    1 Object 1

    AOE ID 43576
    NORAD ID 43576
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 44600
    NORAD ID 44600
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter IRIDIUM 156 GAOFEN 9 DEB
    Time of Closest Approach 2026-09-17T01:13:00+0000
    Collision Probability (Pc) 2.932092E-6
    Conjunction Distance (km) 1.98 km
    Relative Speed (km/s) 14.76 km/s
    Conjunction Risk Parameters R (Radial): -0.851 | I (In-track): 0.195 | C (Cross-track): 1.776
    Collision Risk Index (CRI) 0.44
    X Position (km) -2355.433 -2355.334
    Position Y (km) -1220.684 -1222.566
    Position Z (km) -6655.373 -6655.979
    Velocity X (km/s) 6.636 -6.962
    Velocity Y (km/s) 2.016 -0.424
    Velocity Z (km/s) -2.719 2.478

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 156 GAOFEN 9 DEB
    Semimajor Axis (a) 7155.807 km 7068.141 km
    Eccentricity (e) 0.000215 0.015080
    Inclination (i) 86.4003° 98.1396°
    RAAN 19.2029° 183.9834°
    Perigee Argument 90.0809° 149.7512°
    Mean Anomaly (M) 270.0633° 211.2502°
    Apogee 779.207 km 796.590 km
    Perigee 776.133 km 583.418 km
    Orbit Epoch 2026-09-14T21:49:42+0000 2026-09-14T14:22:15+0000

    IRIDIUM 156 & GAOFEN 9 DEB Collision Probability (Pc) Trend

    IRIDIUM 156 & GAOFEN 9 DEB Collision Probability (Pc) TrendNot Available

    IRIDIUM 156 & GAOFEN 9 DEB Miss Distance (Miss Distance) Trend

    IRIDIUM 156 & GAOFEN 9 DEB Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 156Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    GAOFEN 9 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 156Collision Probability Trend

    Object 1 Probability TrendNot Available

    GAOFEN 9 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 156

    No nearby objects data