Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.065516E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T01:09:26+0800
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    1 Object 1

    AOE ID 31631
    NORAD ID 31631
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 58795
    NORAD ID 58795
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-31161
    Time of Closest Approach 2026-09-12T12:11:10+0000
    Collision Probability (Pc) 1.065516E-6
    Conjunction Distance (km) 2.729 km
    Relative Speed (km/s) 7.986 km/s
    Conjunction Risk Parameters R (Radial): -2.722 | I (In-track): -0.157 | C (Cross-track): 0.088
    Collision Risk Index (CRI) 0.36
    X Position (km) 4943.134 4944.998
    Position Y (km) 3876.406 3877.962
    Position Z (km) -2757.381 -2758.626
    Velocity X (km/s) -1.528 -5.205
    Velocity Y (km/s) -2.91 3.653
    Velocity Z (km/s) -6.881 -4.201

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-31161
    Semimajor Axis (a) 6866.890 km 6861.182 km
    Eccentricity (e) 0.002332 0.000129
    Inclination (i) 99.3084° 43.0039°
    RAAN 218.7613° 197.2448°
    Perigee Argument 152.1956° 272.5008°
    Mean Anomaly (M) 208.0529° 87.5695°
    Apogee 504.770 km 483.933 km
    Perigee 472.736 km 482.157 km
    Orbit Epoch 2026-09-09T17:13:06+0000 2026-09-11T05:25:43+0000

    FENGYUN 1C DEB & STARLINK-31161 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-31161 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-31161 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-31161 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31161Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31161Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data