Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.226019E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-23T17:49:24+0800
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    1 Object 1

    AOE ID 6787
    NORAD ID 6787
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 42386
    NORAD ID 42386
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter OPS 8364 (DMSP 4) NOAA 16 DEB
    Time of Closest Approach 2026-10-24T10:49:04+0000
    Collision Probability (Pc) 4.226019E-6
    Conjunction Distance (km) 1.7 km
    Relative Speed (km/s) 13.405 km/s
    Conjunction Risk Parameters R (Radial): 1.693 | I (In-track): 0.076 | C (Cross-track): 0.137
    Collision Risk Index (CRI) 0.48
    X Position (km) -2438.548 -2439.154
    Position Y (km) -341.227 -341.155
    Position Z (km) -6726.919 -6728.505
    Velocity X (km/s) -6.688 5.761
    Velocity Y (km/s) 2.318 4.111
    Velocity Z (km/s) 2.328 -2.309

    Orbital Parameters 国际轨道数据源

    Parameter OPS 8364 (DMSP 4) NOAA 16 DEB
    Semimajor Axis (a) 7157.367 km 7148.027 km
    Eccentricity (e) 0.002616 0.001965
    Inclination (i) 98.5438° 98.6878°
    RAAN 161.9394° 30.2859°
    Perigee Argument 20.0629° 123.9437°
    Mean Anomaly (M) 340.1578° 236.3620°
    Apogee 797.956 km 783.936 km
    Perigee 760.504 km 755.844 km
    Orbit Epoch 2026-10-22T15:36:14+0000 2026-10-22T02:29:17+0000

    OPS 8364 (DMSP 4) & NOAA 16 DEB Collision Probability (Pc) Trend

    OPS 8364 (DMSP 4) & NOAA 16 DEB Collision Probability (Pc) TrendNot Available

    OPS 8364 (DMSP 4) & NOAA 16 DEB Miss Distance (Miss Distance) Trend

    OPS 8364 (DMSP 4) & NOAA 16 DEB Miss Distance (Miss Distance) TrendNot Available

    OPS 8364 (DMSP 4)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 8364 (DMSP 4)Collision Probability Trend

    Object 1 Probability TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 8364 (DMSP 4)

    No nearby objects data