Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.427024E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T23:29:38+0800
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    1 Object 1

    AOE ID 41236
    NORAD ID 41236
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 49260
    NORAD ID 49260
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 16 DEB LANDSAT 9
    Time of Closest Approach 2026-09-17T01:39:34+0000
    Collision Probability (Pc) 1.427024E-6
    Conjunction Distance (km) 2.846 km
    Relative Speed (km/s) 14.714 km/s
    Conjunction Risk Parameters R (Radial): -1.641 | I (In-track): -0.444 | C (Cross-track): -2.282
    Collision Risk Index (CRI) 0.38
    X Position (km) 4996.344 4996.56
    Position Y (km) -2229.509 -2232.152
    Position Z (km) -4503.37 -4504.402
    Velocity X (km/s) -4.878 3.705
    Velocity Y (km/s) 0.504 -3.175
    Velocity Z (km/s) -5.681 5.689

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 16 DEB LANDSAT 9
    Semimajor Axis (a) 7097.540 km 7080.654 km
    Eccentricity (e) 0.002806 0.000149
    Inclination (i) 99.0441° 98.2201°
    RAAN 160.4004° 327.2048°
    Perigee Argument 201.1408° 99.5714°
    Mean Anomaly (M) 158.8627° 260.5653°
    Apogee 739.322 km 703.574 km
    Perigee 699.484 km 701.460 km
    Orbit Epoch 2026-09-14T04:50:19+0000 2026-09-15T03:41:48+0000

    NOAA 16 DEB & LANDSAT 9 Collision Probability (Pc) Trend

    NOAA 16 DEB & LANDSAT 9 Collision Probability (Pc) TrendNot Available

    NOAA 16 DEB & LANDSAT 9 Miss Distance (Miss Distance) Trend

    NOAA 16 DEB & LANDSAT 9 Miss Distance (Miss Distance) TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LANDSAT 9Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    LANDSAT 9Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 16 DEB

    No nearby objects data