Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.227681E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T18:50:01+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) 1.227681E-5
    Conjunction Distance (km) 1.229 km
    Relative Speed (km/s) 13.273 km/s
    Conjunction Risk Parameters R (Radial): 0.667 | I (In-track): 0.453 | C (Cross-track): -0.927
    Collision Risk Index (CRI) 0.57
    X Position (km) -5687.92 -5687.345
    Position Y (km) -2059.518 -2058.448
    Position Z (km) -3839.396 -3839.578
    Velocity X (km/s) 3.855 -4.22
    Velocity Y (km/s) -5.738 0.144
    Velocity Z (km/s) -2.593 6.146

    Orbital Parameters 国际轨道数据源

    Parameter DIADEME 1 NIMBUS 2 DEB
    Semimajor Axis (a) 7021.872 km 7158.101 km
    Eccentricity (e) 0.020243 0.002450
    Inclination (i) 39.9176° 100.2517°
    RAAN 343.7196° 190.1713°
    Perigee Argument 31.3978° 243.6040°
    Mean Anomaly (M) 329.8712° 116.2624°
    Apogee 785.879 km 797.500 km
    Perigee 501.591 km 762.428 km
    Orbit Epoch 2026-10-19T20:57:00+0000 2026-10-19T15:22:20+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