Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.955953E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T04:43:05+0800
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    1 Object 1

    AOE ID 4912
    NORAD ID 4912
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 41924
    NORAD ID 41924
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter THORAD AGENA D DEB IRIDIUM 108
    Time of Closest Approach 2026-09-17T13:22:02+0000
    Collision Probability (Pc) 5.955953E-7
    Conjunction Distance (km) 2.662 km
    Relative Speed (km/s) 2.503 km/s
    Conjunction Risk Parameters R (Radial): 0.364 | I (In-track): 2.597 | C (Cross-track): -0.457
    Collision Risk Index (CRI) 0.3
    X Position (km) 4607.144 4605.692
    Position Y (km) 1849.577 1848.792
    Position Z (km) 5145.935 5148.022
    Velocity X (km/s) -4.172 -5.226
    Velocity Y (km/s) -3.637 -1.37
    Velocity Z (km/s) 5.032 5.154

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB IRIDIUM 108
    Semimajor Axis (a) 7180.049 km 7155.806 km
    Eccentricity (e) 0.003566 0.000215
    Inclination (i) 99.7285° 86.4001°
    RAAN 29.6141° 19.3544°
    Perigee Argument 51.8326° 95.9652°
    Mean Anomaly (M) 308.6055° 264.1789°
    Apogee 827.516 km 779.204 km
    Perigee 776.308 km 776.134 km
    Orbit Epoch 2026-09-15T07:17:59+0000 2026-09-14T14:49:34+0000

    THORAD AGENA D DEB & IRIDIUM 108 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & IRIDIUM 108 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & IRIDIUM 108 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & IRIDIUM 108 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 108Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 108Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data