Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.857328E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T14:27:20+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 57928
    NORAD ID 57928
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter KOSEN-1 STARLINK-30448
    Time of Closest Approach 2026-09-11T09:58:24+0000
    Collision Probability (Pc) 1.857328E-6
    Conjunction Distance (km) 2.143 km
    Relative Speed (km/s) 9.67 km/s
    Conjunction Risk Parameters R (Radial): 0.523 | I (In-track): 1.61 | C (Cross-track): -1.314
    Collision Risk Index (CRI) 0.4
    X Position (km) 2746.766 2748.44
    Position Y (km) -4604.887 -4605.673
    Position Z (km) -4283.556 -4282.473
    Velocity X (km/s) 1.34 6.981
    Velocity Y (km/s) -4.668 2.218
    Velocity Z (km/s) 5.87 2.096

    Orbital Parameters 国际轨道数据源

    Parameter KOSEN-1 STARLINK-30448
    Semimajor Axis (a) 6860.264 km 6861.215 km
    Eccentricity (e) 0.001154 0.000169
    Inclination (i) 97.3117° 43.0049°
    RAAN 294.1640° 4.5088°
    Perigee Argument 263.5573° 263.4180°
    Mean Anomaly (M) 96.4354° 96.6480°
    Apogee 490.041 km 484.235 km
    Perigee 474.213 km 481.921 km
    Orbit Epoch 2026-09-10T15:16:55+0000 2026-09-10T13:51:42+0000

    KOSEN-1 & STARLINK-30448 Collision Probability (Pc) Trend

    KOSEN-1 & STARLINK-30448 Collision Probability (Pc) TrendNot Available

    KOSEN-1 & STARLINK-30448 Miss Distance (Miss Distance) Trend

    KOSEN-1 & STARLINK-30448 Miss Distance (Miss Distance) TrendNot Available

    KOSEN-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30448Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    KOSEN-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30448Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with KOSEN-1

    No nearby objects data