Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.892049E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T01:44:16+0800
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    1 Object 1

    AOE ID 36028
    NORAD ID 36028
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 53470
    NORAD ID 53470
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter IRIDIUM 33 DEB STARLINK-4393
    Time of Closest Approach 2026-09-04T22:02:11+0000
    Collision Probability (Pc) 3.892049E-6
    Conjunction Distance (km) 1.796 km
    Relative Speed (km/s) 15.14 km/s
    Conjunction Risk Parameters R (Radial): 0.957 | I (In-track): -0.068 | C (Cross-track): 1.519
    Collision Risk Index (CRI) 0.47
    X Position (km) -5707.606 -5706.846
    Position Y (km) 248.614 250.093
    Position Z (km) -3931.715 -3931.036
    Velocity X (km/s) -4.299 4.289
    Velocity Y (km/s) -0.405 0.98
    Velocity Z (km/s) 6.22 -6.171

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 33 DEB STARLINK-4393
    Semimajor Axis (a) 6919.107 km 6927.621 km
    Eccentricity (e) 0.001431 0.000067
    Inclination (i) 86.3114° 97.2864°
    RAAN 180.9094° 1.9397°
    Perigee Argument 156.4782° 82.3879°
    Mean Anomaly (M) 203.7112° 277.7424°
    Apogee 550.873 km 549.947 km
    Perigee 531.067 km 549.021 km
    Orbit Epoch 2026-09-03T03:12:13+0000 2026-09-04T06:43:51+0000

    IRIDIUM 33 DEB & STARLINK-4393 Collision Probability (Pc) Trend

    IRIDIUM 33 DEB & STARLINK-4393 Collision Probability (Pc) TrendNot Available

    IRIDIUM 33 DEB & STARLINK-4393 Miss Distance (Miss Distance) Trend

    IRIDIUM 33 DEB & STARLINK-4393 Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 33 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4393Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 33 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4393Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 33 DEB

    No nearby objects data