Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.892295E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-02T05:32:08+0800
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    1 Object 1

    AOE ID 31686
    NORAD ID 31686
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 59263
    NORAD ID 59263
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-31598
    Time of Closest Approach 2026-09-02T01:16:11+0000
    Collision Probability (Pc) 1.892295E-6
    Conjunction Distance (km) 2.31 km
    Relative Speed (km/s) 13.011 km/s
    Conjunction Risk Parameters R (Radial): -2.279 | I (In-track): 0.182 | C (Cross-track): -0.324
    Collision Risk Index (CRI) 0.41
    X Position (km) 3774.852 3773.894
    Position Y (km) -1866.4 -1865.621
    Position Z (km) -5401.277 -5399.324
    Velocity X (km/s) 4.485 2.111
    Velocity Y (km/s) -4.197 7.253
    Velocity Z (km/s) 4.673 -1.031

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-31598
    Semimajor Axis (a) 7018.896 km 6840.870 km
    Eccentricity (e) 0.026669 0.000131
    Inclination (i) 98.1250° 53.1598°
    RAAN 322.5392° 85.3371°
    Perigee Argument 328.6814° 74.3777°
    Mean Anomaly (M) 91.8716° 285.7370°
    Apogee 827.948 km 463.628 km
    Perigee 453.570 km 461.838 km
    Orbit Epoch 2026-09-01T11:08:17+0000 2026-08-31T20:00:06+0000

    FENGYUN 1C DEB & STARLINK-31598 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-31598 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-31598 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-31598 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31598Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31598Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data