Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.627437E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T07:23:07+0800
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    1 Object 1

    AOE ID 41055
    NORAD ID 41055
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 43250
    NORAD ID 43250
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 16 DEB IRIDIUM 149
    Time of Closest Approach 2026-09-12T19:29:40+0000
    Collision Probability (Pc) 1.627437E-6
    Conjunction Distance (km) 2.49 km
    Relative Speed (km/s) 12.873 km/s
    Conjunction Risk Parameters R (Radial): 0.638 | I (In-track): 1.214 | C (Cross-track): 2.079
    Collision Risk Index (CRI) 0.39
    X Position (km) 144.209 145.84
    Position Y (km) -1088.494 -1090.129
    Position Z (km) 7062.577 7061.646
    Velocity X (km/s) -7.283 2.137
    Velocity Y (km/s) -1.622 7.077
    Velocity Z (km/s) -0.096 1.046

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 16 DEB IRIDIUM 149
    Semimajor Axis (a) 7147.364 km 7155.805 km
    Eccentricity (e) 0.001270 0.000235
    Inclination (i) 98.7966° 86.3906°
    RAAN 10.0891° 254.6825°
    Perigee Argument 311.7548° 90.5084°
    Mean Anomaly (M) 48.2551° 269.6381°
    Apogee 778.301 km 779.349 km
    Perigee 760.153 km 775.987 km
    Orbit Epoch 2026-09-10T06:54:15+0000 2026-09-10T11:51:27+0000

    NOAA 16 DEB & IRIDIUM 149 Collision Probability (Pc) Trend

    NOAA 16 DEB & IRIDIUM 149 Collision Probability (Pc) TrendNot Available

    NOAA 16 DEB & IRIDIUM 149 Miss Distance (Miss Distance) Trend

    NOAA 16 DEB & IRIDIUM 149 Miss Distance (Miss Distance) TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 149Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 149Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 16 DEB

    No nearby objects data