Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.812947E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T23:25:10+0800
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    1 Object 1

    AOE ID 40434
    NORAD ID 40434
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 41919
    NORAD ID 41919
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DMSP 5D-2 F13 DEB IRIDIUM 109
    Time of Closest Approach 2026-09-17T20:48:09+0000
    Collision Probability (Pc) 1.812947E-6
    Conjunction Distance (km) 2.448 km
    Relative Speed (km/s) 14.64 km/s
    Conjunction Risk Parameters R (Radial): -0.596 | I (In-track): 0.461 | C (Cross-track): -2.328
    Collision Risk Index (CRI) 0.4
    X Position (km) 1545.837 1547.769
    Position Y (km) 1155.468 1154.224
    Position Z (km) -6900.407 -6899.563
    Velocity X (km/s) -2.046 4.551
    Velocity Y (km/s) -7.034 5.564
    Velocity Z (km/s) -1.524 1.953

    Orbital Parameters 国际轨道数据源

    Parameter DMSP 5D-2 F13 DEB IRIDIUM 109
    Semimajor Axis (a) 7222.391 km 7155.818 km
    Eccentricity (e) 0.017004 0.000216
    Inclination (i) 99.1276° 86.3939°
    RAAN 249.1369° 51.1899°
    Perigee Argument 323.9558° 91.5223°
    Mean Anomaly (M) 35.0244° 268.6220°
    Apogee 967.063 km 779.224 km
    Perigee 721.445 km 776.138 km
    Orbit Epoch 2026-09-15T04:45:38+0000 2026-09-14T09:25:42+0000

    DMSP 5D-2 F13 DEB & IRIDIUM 109 Collision Probability (Pc) Trend

    DMSP 5D-2 F13 DEB & IRIDIUM 109 Collision Probability (Pc) TrendNot Available

    DMSP 5D-2 F13 DEB & IRIDIUM 109 Miss Distance (Miss Distance) Trend

    DMSP 5D-2 F13 DEB & IRIDIUM 109 Miss Distance (Miss Distance) TrendNot Available

    DMSP 5D-2 F13 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 109Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DMSP 5D-2 F13 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 109Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DMSP 5D-2 F13 DEB

    No nearby objects data