Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.910234E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-06T12:50:42+0800
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    1 Object 1

    AOE ID 53731
    NORAD ID 53731
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58760
    NORAD ID 58760
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4636 YUNYAO-1 20
    Time of Closest Approach 2026-09-07T13:31:40+0000
    Collision Probability (Pc) 7.910234E-7
    Conjunction Distance (km) 2.274 km
    Relative Speed (km/s) 2.675 km/s
    Conjunction Risk Parameters R (Radial): -2.223 | I (In-track): 0.466 | C (Cross-track): 0.083
    Collision Risk Index (CRI) 0.33
    X Position (km) 3811.411 3809.883
    Position Y (km) 2265.297 2264.927
    Position Z (km) -5273.806 -5272.164
    Velocity X (km/s) -5.441 -3.984
    Velocity Y (km/s) 4.998 6.476
    Velocity Z (km/s) -1.784 -0.097

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4636 YUNYAO-1 20
    Semimajor Axis (a) 6883.849 km 6885.783 km
    Eccentricity (e) 0.000329 0.000349
    Inclination (i) 53.2077° 49.9755°
    RAAN 156.1498° 130.1929°
    Perigee Argument 16.1982° 259.2414°
    Mean Anomaly (M) 343.9119° 100.8146°
    Apogee 507.978 km 510.048 km
    Perigee 503.446 km 505.244 km
    Orbit Epoch 2026-09-05T17:48:47+0000 2026-09-05T22:28:02+0000

    STARLINK-4636 & YUNYAO-1 20 Collision Probability (Pc) Trend

    STARLINK-4636 & YUNYAO-1 20 Collision Probability (Pc) TrendNot Available

    STARLINK-4636 & YUNYAO-1 20 Miss Distance (Miss Distance) Trend

    STARLINK-4636 & YUNYAO-1 20 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4636Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNYAO-1 20Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4636Collision Probability Trend

    Object 1 Probability TrendNot Available

    YUNYAO-1 20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4636

    No nearby objects data