Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.205785E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T06:10:52+0800
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    1 Object 1

    AOE ID 41429
    NORAD ID 41429
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 43922
    NORAD ID 43922
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 16 DEB IRIDIUM 180
    Time of Closest Approach 2026-09-12T03:35:16+0000
    Collision Probability (Pc) 6.205785E-7
    Conjunction Distance (km) 2.957 km
    Relative Speed (km/s) 3.521 km/s
    Conjunction Risk Parameters R (Radial): -2.364 | I (In-track): -1.724 | C (Cross-track): 0.417
    Collision Risk Index (CRI) 0.31
    X Position (km) 2652.701 2653.203
    Position Y (km) -1905.888 -1906.029
    Position Z (km) 6361.066 6358.156
    Velocity X (km/s) -6.542 -4.746
    Velocity Y (km/s) 1.65 4.674
    Velocity Z (km/s) 3.209 3.374

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 16 DEB IRIDIUM 180
    Semimajor Axis (a) 7168.011 km 7155.803 km
    Eccentricity (e) 0.001759 0.000222
    Inclination (i) 98.7066° 86.3990°
    RAAN 339.9742° 318.2047°
    Perigee Argument 97.1423° 95.6027°
    Mean Anomaly (M) 263.1760° 264.5422°
    Apogee 802.481 km 779.257 km
    Perigee 777.267 km 776.075 km
    Orbit Epoch 2026-09-10T11:00:10+0000 2026-09-09T21:42:47+0000

    NOAA 16 DEB & IRIDIUM 180 Collision Probability (Pc) Trend

    NOAA 16 DEB & IRIDIUM 180 Collision Probability (Pc) TrendNot Available

    NOAA 16 DEB & IRIDIUM 180 Miss Distance (Miss Distance) Trend

    NOAA 16 DEB & IRIDIUM 180 Miss Distance (Miss Distance) TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 180Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 180Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 16 DEB

    No nearby objects data