Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.136334E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T05:19:47+0800
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    1 Object 1

    AOE ID 31222
    NORAD ID 31222
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 52851
    NORAD ID 52851
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-3809
    Time of Closest Approach 2026-09-09T23:01:41+0000
    Collision Probability (Pc) 2.136334E-5
    Conjunction Distance (km) 1.019 km
    Relative Speed (km/s) 11.553 km/s
    Conjunction Risk Parameters R (Radial): -0.052 | I (In-track): 0.661 | C (Cross-track): -0.773
    Collision Risk Index (CRI) 0.62
    X Position (km) -3991.859 -3992.39
    Position Y (km) 1065.039 1065.773
    Position Z (km) -5459.79 -5459.325
    Velocity X (km/s) 6.245 -1.312
    Velocity Y (km/s) 0.301 -7.493
    Velocity Z (km/s) -4.453 -0.503

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-3809
    Semimajor Axis (a) 6936.036 km 6840.847 km
    Eccentricity (e) 0.015028 0.000173
    Inclination (i) 98.5913° 53.1566°
    RAAN 355.7996° 264.9590°
    Perigee Argument 259.0100° 77.1409°
    Mean Anomaly (M) 99.4187° 282.9787°
    Apogee 662.134 km 463.897 km
    Perigee 453.664 km 461.523 km
    Orbit Epoch 2026-09-09T06:00:09+0000 2026-09-09T12:29:51+0000

    FENGYUN 1C DEB & STARLINK-3809 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-3809 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-3809 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-3809 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3809Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3809Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data