Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.007786E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T23:29:38+0800
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    1 Object 1

    AOE ID 42164
    NORAD ID 42164
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

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

    Conjunction Constraints

    Parameter COSMOS 1275 DEB LANDSAT 9
    Time of Closest Approach 2026-09-17T11:16:15+0000
    Collision Probability (Pc) 5.007786E-6
    Conjunction Distance (km) 1.472 km
    Relative Speed (km/s) 8.785 km/s
    Conjunction Risk Parameters R (Radial): -0.076 | I (In-track): 1.188 | C (Cross-track): 0.866
    Collision Risk Index (CRI) 0.49
    X Position (km) -584.055 -584.649
    Position Y (km) 1501.476 1502.797
    Position Z (km) -6903.431 -6903.171
    Velocity X (km/s) -1.569 6.444
    Velocity Y (km/s) -7.173 -3.576
    Velocity Z (km/s) -1.428 -1.325

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1275 DEB LANDSAT 9
    Semimajor Axis (a) 7066.664 km 7080.654 km
    Eccentricity (e) 0.002135 0.000149
    Inclination (i) 82.9142° 98.2201°
    RAAN 262.6107° 327.2048°
    Perigee Argument 94.4182° 99.5714°
    Mean Anomaly (M) 265.9461° 260.5653°
    Apogee 703.611 km 703.574 km
    Perigee 673.443 km 701.460 km
    Orbit Epoch 2026-09-13T07:29:59+0000 2026-09-15T03:41:48+0000

    COSMOS 1275 DEB & LANDSAT 9 Collision Probability (Pc) Trend

    COSMOS 1275 DEB & LANDSAT 9 Collision Probability (Pc) TrendNot Available

    COSMOS 1275 DEB & LANDSAT 9 Miss Distance (Miss Distance) Trend

    COSMOS 1275 DEB & LANDSAT 9 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1275 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

    COSMOS 1275 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    LANDSAT 9Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1275 DEB

    No nearby objects data