Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.158796E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:48:16+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 57984
    NORAD ID 57984
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter KOSEN-1 STARLINK-30516
    Time of Closest Approach 2026-10-20T11:38:37+0000
    Collision Probability (Pc) 3.158796E-6
    Conjunction Distance (km) 1.91 km
    Relative Speed (km/s) 14.292 km/s
    Conjunction Risk Parameters R (Radial): 1.655 | I (In-track): -0.34 | C (Cross-track): -0.89
    Collision Risk Index (CRI) 0.45
    X Position (km) -5916.419 -5917.529
    Position Y (km) 3182.101 3183.65
    Position Z (km) -1390.111 -1390.003
    Velocity X (km/s) 1.803 -3.599
    Velocity Y (km/s) 0.154 -4.528
    Velocity Z (km/s) -7.407 4.968

    Orbital Parameters 国际轨道数据源

    Parameter KOSEN-1 STARLINK-30516
    Semimajor Axis (a) 6858.905 km 6861.123 km
    Eccentricity (e) 0.001475 0.000100
    Inclination (i) 97.3065° 43.0002°
    RAAN 332.3149° 167.4829°
    Perigee Argument 123.1689° 287.3408°
    Mean Anomaly (M) 237.0968° 72.7334°
    Apogee 490.885 km 483.672 km
    Perigee 470.651 km 482.300 km
    Orbit Epoch 2026-10-19T12:48:37+0000 2026-10-19T23:09:54+0000

    KOSEN-1 & STARLINK-30516 Collision Probability (Pc) Trend

    KOSEN-1 & STARLINK-30516 Collision Probability (Pc) TrendNot Available

    KOSEN-1 & STARLINK-30516 Miss Distance (Miss Distance) Trend

    KOSEN-1 & STARLINK-30516 Miss Distance (Miss Distance) TrendNot Available

    KOSEN-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30516Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    KOSEN-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30516Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with KOSEN-1

    No nearby objects data