Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    5.47956E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-07T20:37:59+0800
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    1 Object 1

    Name USA 16
    AOE ID 16624
    NORAD ID 16624
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

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

    Conjunction Constraints

    Parameter USA 16 NIMBUS 2 DEB
    Time of Closest Approach 2026-10-07T14:26:41+0000
    Collision Probability (Pc) 5.47956E-5
    Conjunction Distance (km) 0.635 km
    Relative Speed (km/s) 4.868 km/s
    Conjunction Risk Parameters R (Radial): -0.392 | I (In-track): 0.457 | C (Cross-track): 0.199
    Collision Risk Index (CRI) 0.7
    X Position (km) 7008.348 7008.806
    Position Y (km) -730.762 -730.923
    Position Z (km) -1281.904 -1281.496
    Velocity X (km/s) -0.29 -1.459
    Velocity Y (km/s) 3.493 -1.204
    Velocity Z (km/s) -6.705 -7.217

    Orbital Parameters 国际轨道数据源

    Parameter USA 16 NIMBUS 2 DEB
    Semimajor Axis (a) 7367.760 km 7158.913 km
    Eccentricity (e) 0.078524 0.002742
    Inclination (i) 63.3010° 100.2519°
    RAAN 170.2853° 174.8160°
    Perigee Argument 118.3307° 281.4240°
    Mean Anomaly (M) 249.9210° 78.3859°
    Apogee 1568.167 km 800.407 km
    Perigee 411.079 km 761.145 km
    Orbit Epoch 2026-10-07T01:21:30+0000 2026-10-06T15:46:36+0000

    USA 16 & NIMBUS 2 DEB Collision Probability (Pc) Trend

    USA 16 & NIMBUS 2 DEB Collision Probability (Pc) TrendNot Available

    USA 16 & NIMBUS 2 DEB Miss Distance (Miss Distance) Trend

    USA 16 & NIMBUS 2 DEB Miss Distance (Miss Distance) TrendNot Available

    USA 16Miss 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

    USA 16Collision Probability Trend

    Object 1 Probability TrendNot Available

    NIMBUS 2 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 16

    No nearby objects data