Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    8.644631E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:38:45+0800
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    1 Object 1

    AOE ID 40449
    NORAD ID 40449
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 41918
    NORAD ID 41918
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DMSP 5D-2 F13 DEB IRIDIUM 103
    Time of Closest Approach 2026-09-16T12:48:19+0000
    Collision Probability (Pc) 8.644631E-6
    Conjunction Distance (km) 1.366 km
    Relative Speed (km/s) 13.583 km/s
    Conjunction Risk Parameters R (Radial): -0.474 | I (In-track): -0.536 | C (Cross-track): -1.163
    Collision Risk Index (CRI) 0.54
    X Position (km) 1038.025 1039.321
    Position Y (km) 552.479 552.184
    Position Z (km) -7067.146 -7067.459
    Velocity X (km/s) 1.192 4.654
    Velocity Y (km/s) -7.343 5.704
    Velocity Z (km/s) -0.382 1.131

    Orbital Parameters 国际轨道数据源

    Parameter DMSP 5D-2 F13 DEB IRIDIUM 103
    Semimajor Axis (a) 7157.045 km 7155.808 km
    Eccentricity (e) 0.002215 0.000219
    Inclination (i) 98.9210° 86.3940°
    RAAN 276.4766° 50.6941°
    Perigee Argument 3.4319° 89.3858°
    Mean Anomaly (M) 356.7013° 270.7589°
    Apogee 794.758 km 779.239 km
    Perigee 763.058 km 776.103 km
    Orbit Epoch 2026-09-14T07:38:44+0000 2026-09-15T10:23:34+0000

    DMSP 5D-2 F13 DEB & IRIDIUM 103 Collision Probability (Pc) Trend

    DMSP 5D-2 F13 DEB & IRIDIUM 103 Collision Probability (Pc) TrendNot Available

    DMSP 5D-2 F13 DEB & IRIDIUM 103 Miss Distance (Miss Distance) Trend

    DMSP 5D-2 F13 DEB & IRIDIUM 103 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 103Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DMSP 5D-2 F13 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 103Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DMSP 5D-2 F13 DEB

    No nearby objects data