Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.337912E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T11:03:58+0800
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    1 Object 1

    AOE ID 2674
    NORAD ID 2674
    Object Type PAYLOAD
    Country
    FR FR
    ← VS →

    2 Object 2

    AOE ID 28621
    NORAD ID 28621
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter DIADEME 1 NIMBUS 2 DEB
    Time of Closest Approach 2026-10-22T06:52:16+0000
    Collision Probability (Pc) 1.337912E-4
    Conjunction Distance (km) 0.58 km
    Relative Speed (km/s) 13.273 km/s
    Conjunction Risk Parameters R (Radial): -0.579 | I (In-track): -0.017 | C (Cross-track): -0.003
    Collision Risk Index (CRI) 0.78
    X Position (km) -5688.311 -5687.858
    Position Y (km) -2058.885 -2058.703
    Position Z (km) -3838.977 -3838.663
    Velocity X (km/s) 3.854 -4.219
    Velocity Y (km/s) -5.738 0.144
    Velocity Z (km/s) -2.594 6.146

    Orbital Parameters 国际轨道数据源

    Parameter DIADEME 1 NIMBUS 2 DEB
    Semimajor Axis (a) 7021.852 km 7158.008 km
    Eccentricity (e) 0.020223 0.002431
    Inclination (i) 39.9175° 100.2522°
    RAAN 334.8354° 191.9894°
    Perigee Argument 42.6684° 239.3102°
    Mean Anomaly (M) 318.9612° 120.5681°
    Apogee 785.718 km 797.272 km
    Perigee 501.712 km 762.470 km
    Orbit Epoch 2026-10-21T11:56:23+0000 2026-10-21T04:13:27+0000

    DIADEME 1 & NIMBUS 2 DEB Collision Probability (Pc) Trend

    DIADEME 1 & NIMBUS 2 DEB Collision Probability (Pc) TrendNot Available

    DIADEME 1 & NIMBUS 2 DEB Miss Distance (Miss Distance) Trend

    DIADEME 1 & NIMBUS 2 DEB Miss Distance (Miss Distance) TrendNot Available

    DIADEME 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NIMBUS 2 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DIADEME 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    NIMBUS 2 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DIADEME 1

    No nearby objects data