Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.588458E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T21:04:24+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 34387
    NORAD ID 34387
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter USA 16 COSMOS 2251 DEB
    Time of Closest Approach 2026-09-12T16:29:41+0000
    Collision Probability (Pc) 4.588458E-5
    Conjunction Distance (km) 0.846 km
    Relative Speed (km/s) 14.021 km/s
    Conjunction Risk Parameters R (Radial): -0.83 | I (In-track): 0.087 | C (Cross-track): 0.136
    Collision Risk Index (CRI) 0.68
    X Position (km) 3492.005 3491.459
    Position Y (km) 6157.572 6156.932
    Position Z (km) -862.545 -862.461
    Velocity X (km/s) -3.116 -1.389
    Velocity Y (km/s) 1.457 1.747
    Velocity Z (km/s) -6.775 7.135

    Orbital Parameters 国际轨道数据源

    Parameter USA 16 COSMOS 2251 DEB
    Semimajor Axis (a) 7368.139 km 7122.284 km
    Eccentricity (e) 0.078714 0.003744
    Inclination (i) 63.2988° 74.0387°
    RAAN 240.8053° 66.4122°
    Perigee Argument 117.8587° 97.5238°
    Mean Anomaly (M) 250.4455° 319.9603°
    Apogee 1569.980 km 770.815 km
    Perigee 410.024 km 717.479 km
    Orbit Epoch 2026-09-11T06:26:40+0000 2026-09-10T13:15:34+0000

    USA 16 & COSMOS 2251 DEB Collision Probability (Pc) Trend

    USA 16 & COSMOS 2251 DEB Collision Probability (Pc) TrendNot Available

    USA 16 & COSMOS 2251 DEB Miss Distance (Miss Distance) Trend

    USA 16 & COSMOS 2251 DEB Miss Distance (Miss Distance) TrendNot Available

    USA 16Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 16Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 16

    No nearby objects data