Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.34992E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T13:25:59+0800
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    1 Object 1

    AOE ID 31820
    NORAD ID 31820
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 58872
    NORAD ID 58872
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-31215
    Time of Closest Approach 2026-09-05T06:58:37+0000
    Collision Probability (Pc) 1.34992E-6
    Conjunction Distance (km) 2.909 km
    Relative Speed (km/s) 14.041 km/s
    Conjunction Risk Parameters R (Radial): -1.386 | I (In-track): -1.021 | C (Cross-track): -2.344
    Collision Risk Index (CRI) 0.38
    X Position (km) 805.315 803.14
    Position Y (km) -5940.942 -5940.714
    Position Z (km) -3343.083 -3341.165
    Velocity X (km/s) -1.849 6.595
    Velocity Y (km/s) 3.484 -1.154
    Velocity Z (km/s) -6.574 3.641

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-31215
    Semimajor Axis (a) 6946.335 km 6861.270 km
    Eccentricity (e) 0.013429 0.000154
    Inclination (i) 98.9441° 43.0027°
    RAAN 100.1858° 323.9871°
    Perigee Argument 236.6933° 280.9441°
    Mean Anomaly (M) 122.1367° 79.1237°
    Apogee 661.481 km 484.191 km
    Perigee 474.915 km 482.075 km
    Orbit Epoch 2026-09-03T01:11:30+0000 2026-09-03T14:22:26+0000

    FENGYUN 1C DEB & STARLINK-31215 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-31215 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-31215 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-31215 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31215Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31215Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data