Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.673889E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:49:10+0800
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    1 Object 1

    AOE ID 31877
    NORAD ID 31877
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 59925
    NORAD ID 59925
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-31959
    Time of Closest Approach 2026-09-03T05:18:23+0000
    Collision Probability (Pc) 2.673889E-4
    Conjunction Distance (km) 0.378 km
    Relative Speed (km/s) 8.419 km/s
    Conjunction Risk Parameters R (Radial): 0.228 | I (In-track): 0.257 | C (Cross-track): -0.159
    Collision Risk Index (CRI) 0.84
    X Position (km) -5920.036 -5919.731
    Position Y (km) -1041.066 -1040.884
    Position Z (km) 3300 3300.131
    Velocity X (km/s) -3.836 -0.895
    Velocity Y (km/s) 0.713 -6.619
    Velocity Z (km/s) -6.591 -3.684

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-31959
    Semimajor Axis (a) 6919.385 km 6861.192 km
    Eccentricity (e) 0.009226 0.000103
    Inclination (i) 99.0016° 43.0007°
    RAAN 3.3180° 49.9049°
    Perigee Argument 137.5402° 246.8486°
    Mean Anomaly (M) 223.3007° 113.2257°
    Apogee 605.089 km 483.762 km
    Perigee 477.407 km 482.348 km
    Orbit Epoch 2026-09-01T19:12:41+0000 2026-09-02T13:01:32+0000

    FENGYUN 1C DEB & STARLINK-31959 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-31959 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-31959 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-31959 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31959Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31959Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data