Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.307902E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T18:27:54+0800
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    1 Object 1

    Name KOSEN-1
    AOE ID 49402
    NORAD ID 49402
    Object Type PAYLOAD
    Country
    JP JP
    VS

    2 Object 2

    AOE ID 67355
    NORAD ID 67355
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter KOSEN-1 STARLINK-36477
    Time of Closest Approach 2026-09-04T14:38:26+0000
    Collision Probability (Pc) 4.307902E-6
    Conjunction Distance (km) 1.472 km
    Relative Speed (km/s) 7.023 km/s
    Conjunction Risk Parameters R (Radial): -0.375 | I (In-track): -1.265 | C (Cross-track): -0.65
    Collision Risk Index (CRI) 0.48
    X Position (km) 2236.502 2237.144
    Position Y (km) -6428.902 -6429.25
    Position Z (km) -860.755 -859.478
    Velocity X (km/s) -0.611 5.518
    Velocity Y (km/s) -1.218 1.241
    Velocity Z (km/s) 7.502 5.114

    Orbital Parameters 国际轨道数据源

    Parameter KOSEN-1 STARLINK-36477
    Semimajor Axis (a) 6860.470 km 6861.146 km
    Eccentricity (e) 0.001154 0.000148
    Inclination (i) 97.3125° 43.0009°
    RAAN 287.8030° 304.7200°
    Perigee Argument 290.0565° 269.9953°
    Mean Anomaly (M) 69.9432° 90.0730°
    Apogee 490.254 km 484.022 km
    Perigee 474.412 km 481.996 km
    Orbit Epoch 2026-09-04T03:40:10+0000 2026-09-03T05:43:58+0000

    KOSEN-1 & STARLINK-36477 Collision Probability (Pc) Trend

    KOSEN-1 & STARLINK-36477 Collision Probability (Pc) TrendNot Available

    KOSEN-1 & STARLINK-36477 Miss Distance (Miss Distance) Trend

    KOSEN-1 & STARLINK-36477 Miss Distance (Miss Distance) TrendNot Available

    KOSEN-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36477Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    KOSEN-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36477Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with KOSEN-1

    No nearby objects data